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  1. Book ; Online ; E-Book: Atlas of craniocervical junction and cervical spine surgery

    Boriani, Stefano / Presutti, Livio / Gasbarrini, Alessandro / Mattioli, Francesco

    2017  

    Author's details Stefano Boriani, Livio Presutti, Alessandro Gasbarrini, Francesco Mattioli editors
    Language English
    Size 1 Online-Ressource (x, 227 Seiten), Illustrationen
    Publisher Springer
    Publishing place Cham
    Publishing country Germany
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT019410320
    ISBN 978-3-319-42737-9 ; 9783319427355 ; 3-319-42737-7 ; 3319427350
    DOI 10.1007/978-3-319-42737-9
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: A neural network potential with self-trained atomic fingerprints: A test with the mW water potential.

    Guidarelli Mattioli, Francesco / Sciortino, Francesco / Russo, John

    The Journal of chemical physics

    2023  Volume 158, Issue 10, Page(s) 104501

    Abstract: We present a neural network (NN) potential based on a new set of atomic fingerprints built upon two- and three-body contributions that probe distances and local orientational order, respectively. Compared with the existing NN potentials, the atomic ... ...

    Abstract We present a neural network (NN) potential based on a new set of atomic fingerprints built upon two- and three-body contributions that probe distances and local orientational order, respectively. Compared with the existing NN potentials, the atomic fingerprints depend on a small set of tunable parameters that are trained together with the NN weights. In addition to simplifying the selection of the atomic fingerprints, this strategy can also considerably increase the overall accuracy of the network representation. To tackle the simultaneous training of the atomic fingerprint parameters and NN weights, we adopt an annealing protocol that progressively cycles the learning rate, significantly improving the accuracy of the NN potential. We test the performance of the network potential against the mW model of water, which is a classical three-body potential that well captures the anomalies of the liquid phase. Trained on just three state points, the NN potential is able to reproduce the mW model in a very wide range of densities and temperatures, from negative pressures to several GPa, capturing the transition from an open random tetrahedral network to a dense interpenetrated network. The NN potential also reproduces very well properties for which it was not explicitly trained, such as dynamical properties and the structure of the stable crystalline phases of mW.
    Language English
    Publishing date 2023-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3113-6
    ISSN 1089-7690 ; 0021-9606
    ISSN (online) 1089-7690
    ISSN 0021-9606
    DOI 10.1063/5.0139245
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Are Neural Network Potentials Trained on Liquid States Transferable to Crystal Nucleation? A Test on Ice Nucleation in the mW Water Model.

    Guidarelli Mattioli, Francesco / Sciortino, Francesco / Russo, John

    The journal of physical chemistry. B

    2023  Volume 127, Issue 17, Page(s) 3894–3901

    Abstract: Neural network potentials (NNPs) are increasingly being used to study processes that happen on long time scales. A typical example is crystal nucleation, which rate is controlled by the occurrence of a rare fluctuation, i.e., the appearance of the ... ...

    Abstract Neural network potentials (NNPs) are increasingly being used to study processes that happen on long time scales. A typical example is crystal nucleation, which rate is controlled by the occurrence of a rare fluctuation, i.e., the appearance of the critical nucleus. Because the properties of this nucleus are far from those of the bulk crystal, it is yet unclear whether NN potentials trained on equilibrium liquid states can accurately describe nucleation processes. So far, nucleation studies on NNPs have been limited to ab initio models whose nucleation properties are unknown, preventing an accurate comparison. Here we train a NN potential on the mW model of water─a classical three-body potential whose nucleation time scale is accessible in standard simulations. We show that a NNP trained only on a small number of liquid state points can reproduce with great accuracy the nucleation rates and free energy barriers of the original model, computed from both spontaneous and biased trajectories, strongly supporting the use of NNPs to study nucleation events.
    Language English
    Publishing date 2023-04-19
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5207
    ISSN (online) 1520-5207
    DOI 10.1021/acs.jpcb.3c00693
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Tracing Allostery in the Spliceosome Ski2-like RNA Helicase Brr2.

    Guidarelli Mattioli, Francesco / Saltalamacchia, Andrea / Magistrato, Alessandra

    The journal of physical chemistry letters

    2024  Volume 15, Issue 13, Page(s) 3502–3508

    Abstract: RNA ATPases/helicases remodel substrate RNA-protein complexes in distinct ways. The different RNA ATPases/helicases, taking part in the spliceosome complex, reshape the RNA/RNA-protein contacts to enable premature-mRNA splicing. Among them, the bad ... ...

    Abstract RNA ATPases/helicases remodel substrate RNA-protein complexes in distinct ways. The different RNA ATPases/helicases, taking part in the spliceosome complex, reshape the RNA/RNA-protein contacts to enable premature-mRNA splicing. Among them, the bad response to refrigeration 2 (Brr2) helicase promotes U4/U6 small nuclear (sn)RNA unwinding via ATP-driven translocation of the U4 snRNA strand, thus playing a pivotal role during the activation, catalytic, and disassembly phases of splicing. The plastic Brr2 architecture consists of an enzymatically active N-terminal cassette (N-cassette) and a structurally similar but inactive C-terminal cassette (C-cassette). The C-cassette, along with other allosteric effectors and regulators, tightly and timely controls Brr2's function via an elusive mechanism. Here, microsecond-long molecular dynamics simulations, dynamical network theory, and community network analysis are combined to elucidate how allosteric effectors/regulators modulate the Brr2 function. We unexpectedly reveal that U4 snRNA itself acts as an allosteric regulator, amplifying the cross-talk of distal Brr2 domains and triggering a conformational reorganization of the protein. Our findings offer fundamental understanding into Brr2's mechanism of action and broaden our knowledge on the sophisticated regulatory mechanisms by which spliceosome ATPases/helicases control gene expression. This includes their allosteric regulation exerted by client RNA strands, a mechanism that may be broadly applicable to other RNA-dependent ATPases/helicases.
    MeSH term(s) Humans ; Adenosine Triphosphatases/metabolism ; Ribonucleoprotein, U4-U6 Small Nuclear/chemistry ; Ribonucleoprotein, U4-U6 Small Nuclear/genetics ; Ribonucleoprotein, U4-U6 Small Nuclear/metabolism ; RNA/metabolism ; RNA Helicases/chemistry ; RNA Helicases/genetics ; RNA Helicases/metabolism ; Spliceosomes/genetics ; Spliceosomes/metabolism ; Ribonucleoproteins, Small Nuclear/metabolism
    Chemical Substances Adenosine Triphosphatases (EC 3.6.1.-) ; Ribonucleoprotein, U4-U6 Small Nuclear ; RNA (63231-63-0) ; RNA Helicases (EC 3.6.4.13) ; SNRNP200 protein, human ; Ribonucleoproteins, Small Nuclear
    Language English
    Publishing date 2024-03-22
    Publishing country United States
    Document type Journal Article
    ISSN 1948-7185
    ISSN (online) 1948-7185
    DOI 10.1021/acs.jpclett.3c03538
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Post-Covid-19 Airway Stenosis: Tracheal Resection-Anastomosis Using The Tritube® Ventilation.

    Molteni, Gabriele / Dallari, Virginia / Segato, Erika / Mattioli, Francesco

    The Laryngoscope

    2023  Volume 134, Issue 2, Page(s) 897–900

    Abstract: We present a video of a tracheal resection and anastomosis performed on a patient affected by A-shaped tracheal stenosis. The condition was a consequence of a percutaneous tracheostomy following a Sars-Cov2 infection. Airways management during the ... ...

    Abstract We present a video of a tracheal resection and anastomosis performed on a patient affected by A-shaped tracheal stenosis. The condition was a consequence of a percutaneous tracheostomy following a Sars-Cov2 infection. Airways management during the surgery was obtained with the Tritube®, an innovative device with a very small lumen that combines stable lung parameters and good visualization of surgical field. Laryngoscope, 134:897-900, 2024.
    MeSH term(s) Humans ; Intubation, Intratracheal ; Constriction, Pathologic/etiology ; Constriction, Pathologic/surgery ; RNA, Viral ; COVID-19 ; SARS-CoV-2 ; Anastomosis, Surgical ; Lung ; Trachea/surgery
    Chemical Substances RNA, Viral
    Language English
    Publishing date 2023-07-19
    Publishing country United States
    Document type Case Reports
    ZDB-ID 80180-x
    ISSN 1531-4995 ; 0023-852X
    ISSN (online) 1531-4995
    ISSN 0023-852X
    DOI 10.1002/lary.30859
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Surgical and radiological perspectives for the spinal accessory nerve passing through a fenestrated internal jugular vein: case series and literature review.

    Guarino, Pierre / Tesauro, Paolo / Giordano, Leone / Caporale, Claudio Donadio / Presutti, Livio / Mattioli, Francesco

    Journal of surgical case reports

    2024  Volume 2024, Issue 4, Page(s) rjae099

    Abstract: The preservation of the spinal accessory nerve represents a key goal in head and neck oncologic surgery during selective neck dissection. This study aims to illustrate the anatomical variants of the XI cranial nerve, delving into the relationship between ...

    Abstract The preservation of the spinal accessory nerve represents a key goal in head and neck oncologic surgery during selective neck dissection. This study aims to illustrate the anatomical variants of the XI cranial nerve, delving into the relationship between the spinal nerve and the internal jugular vein, as well as the surgical implications. Two cases of patients who underwent oncologic surgery with neck dissection are described. Both cases found the spinal accessory nerve passing through the fenestration of the internal jugular vein. Alongside this case series, an independent literature review was conducted using the Medline and PubMed databases. In the majority of cases (67% - 96%), the spinal accessory nerve traces a lateral course to the internal jugular vein. Less frequently, the XI cranial nerve courses medial to the internal jugular vein. More rarely, as described in this case series, the nerve crosses through the fenestration of the vein (0.48% - 3.3%).
    Language English
    Publishing date 2024-04-12
    Publishing country England
    Document type Case Reports
    ZDB-ID 2580919-2
    ISSN 2042-8812
    ISSN 2042-8812
    DOI 10.1093/jscr/rjae099
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Could the replacement of a tracheotomy tube be potentially fatal?

    Ghirelli, Michael / Molinari, Giulia / Livio, Presutti / Mattioli, Francesco

    Acta otorrinolaringologica espanola

    2021  Volume 72, Issue 5, Page(s) 332–333

    MeSH term(s) Humans ; Intubation, Intratracheal ; Tracheostomy ; Tracheotomy/adverse effects
    Language English
    Publishing date 2021-10-12
    Publishing country Spain
    Document type Journal Article
    ISSN 2173-5735
    ISSN (online) 2173-5735
    DOI 10.1016/j.otoeng.2020.06.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Shoulder Tendinopathies and Occupational Biomechanical Overload: A Critical Appraisal of Available Evidence.

    Curti, Stefania / Mattioli, Stefano / Violante, Francesco Saverio

    La Medicina del lavoro

    2023  Volume 114, Issue 4, Page(s) e2023033

    Abstract: Background: The aim of this study is to evaluate the association between occupational exposure to biomechanical risk factors and shoulder tendinopathies.: Methods: We updated recent systematic reviews about specific shoulder disorders and work- ... ...

    Abstract Background: The aim of this study is to evaluate the association between occupational exposure to biomechanical risk factors and shoulder tendinopathies.
    Methods: We updated recent systematic reviews about specific shoulder disorders and work-related risk factors. MEDLINE was searched up to September 2022. Studies satisfying the following criteria were included: i) the diagnosis was based on physical examination plus imaging data (when available), and ii) the exposure assessment was based on video analysis and/or directly measured.
    Results: Five studies met the inclusion criteria: three cross-sectional studies identified from published systematic reviews and two cohort studies retrieved from the update. Two studies investigated shoulder tendinitis, one supraspinatus tendinitis, and the other two rotator cuff syndrome. The diagnosis was based on physical examination, not supported by imaging techniques for all the included studies. In four out of five studies, the exposure was assessed by experienced ergonomists with the support of video recordings. In two studies, the exposure assessment was further supplemented by force gauge measurements or direct measurements of upper arm elevation. Only the combined exposure of working with arms above shoulder level with forceful hand exertion appears to be associated with rotator cuff syndrome: i) a cohort study reported an HR=1.11 (95%CI 1.01-1.22) for each unit increase in forceful repetition rate when the upper arm is flexed ≥45° for ≥29% of the working time; and ii) a cross-sectional study showed an OR=2.43 (95%CI 1.04-5.68) for the combination of upper arm flexion ≥45° for more than 15% of the time with a duty cycle of forceful exertions more than 9% of the time.
    Conclusions: There is moderate evidence of a causal association between shoulder tendinopathy and combined exposures of working above shoulder level with forceful hand exertion. The evidence is insufficient for any single biomechanical exposure on its own. High-quality cohort studies with direct exposure measures and objective diagnostic criteria are needed. The occupational origin of shoulder tendinopathies is still an open question that must be properly answered.
    MeSH term(s) Humans ; Shoulder ; Cross-Sectional Studies ; Cohort Studies ; Upper Extremity ; Tendinopathy/etiology
    Language English
    Publishing date 2023-08-02
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 123678-7
    ISSN 0025-7818
    ISSN 0025-7818
    DOI 10.23749/mdl.v114i4.14537
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: A time-correlated single photon counting SPAD array camera with a bespoke data-processing algorithm for lightsheet fluorescence lifetime imaging (FLIM) and FLIM videos.

    Nedbal, Jakub / Mattioli Della Rocca, Francesco / Ivanova, Iveta T / Allan, Andrew / Graham, Jeremy / Walker, Richard / Henderson, Robert K / Suhling, Klaus

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 7247

    Abstract: A wide-field microscope with epi-fluorescence and selective plane illumination was combined with a single-photon avalanche diode (SPAD) array camera to enable live-cell fluorescence lifetime imaging (FLIM) using time-correlated single-photon counting ( ... ...

    Abstract A wide-field microscope with epi-fluorescence and selective plane illumination was combined with a single-photon avalanche diode (SPAD) array camera to enable live-cell fluorescence lifetime imaging (FLIM) using time-correlated single-photon counting (TCSPC). The camera sensor comprised of
    MeSH term(s) Microscopy, Fluorescence/methods ; Algorithms
    Language English
    Publishing date 2024-03-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-56122-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Book ; Online: A neural network potential with self-trained atomic fingerprints

    Mattioli, Francesco Guidarelli / Sciortino, Francesco / Russo, John

    a test with the mW water potential

    2023  

    Abstract: We present a neural network (NN) potential based on a new set of atomic fingerprints built upon two- and three-body contributions that probe distances and local orientational order respectively. Compared to existing NN potentials, the atomic fingerprints ...

    Abstract We present a neural network (NN) potential based on a new set of atomic fingerprints built upon two- and three-body contributions that probe distances and local orientational order respectively. Compared to existing NN potentials, the atomic fingerprints depend on a small set of tuneable parameters which are trained together with the neural network weights. To tackle the simultaneous training of the atomic fingerprint parameters and neural network weights we adopt an annealing protocol that progressively cycles the learning rate, significantly improving the accuracy of the NN potential. We test the performance of the network potential against the mW model of water, which is a classical three-body potential that well captures the anomalies of the liquid phase. Trained on just three state points, the NN potential is able to reproduce the mW model in a very wide range of densities and temperatures, from negative pressures to several GPa, capturing the transition from an open random tetrahedral network to a dense interpenetrated network. The NN potential also reproduces very well properties for which it was not explicitly trained, such as dynamical properties and the structure of the stable crystalline phases of mW.

    Comment: 14 pages, 11 figures
    Keywords Condensed Matter - Soft Condensed Matter ; Condensed Matter - Disordered Systems and Neural Networks ; Condensed Matter - Materials Science
    Subject code 000
    Publishing date 2023-01-27
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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