المؤلفون: Scuderi L., Fragiotta S., Di Pippo M., Abdolrahimzadeh S.

المساهمون: Scuderi, L., Fragiotta, S., Di Pippo, M., Abdolrahimzadeh, S.

مصطلحات موضوعية: choriocapillari, choroid, diabetes mellitu, diabetic choroidopathy, diabetic retinopathy, optical coherence tomography

الوصف: Diabetic choroidopathy was first described on histopathological specimens of diabetic eyes. This alteration was characterized by the accumulation of PAS-positive material within the intracapillary stroma. Inflammation and polymorphonuclear neutrophils (PMNs) activation are crucial elements in choriocapillaris impairment. The evidence of diabetic choroidopathy in vivo was confirmed with multimodal imaging, which provides key quantitative and qualitative features to characterize the choroidal involvement. The choroid can be virtually affected in each vascular layer, from Haller’s layer to the choriocapillaris. However, the damage on the outer retina and photoreceptor cells is essentially driven by a choriocapillaris deficiency, which can be assessed through optical coherence tomography angiography (OCTA). The identification of characteristic features of diabetic choroidopathy can be significant for understanding the potential pathogenic and prognostic implications in diabetic retinopathy.

العلاقة: info:eu-repo/semantics/altIdentifier/pmid/37373315; info:eu-repo/semantics/altIdentifier/wos/WOS:001014474700001; volume:24; issue:12; firstpage:1; lastpage:13; numberofpages:13; journal:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES; https://hdl.handle.net/11573/1688583Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85163959853

الإتاحة: https://doi.org/10.3390/ijms241210167Test
https://hdl.handle.net/11573/1688583Test

المؤلفون: Newsom, H. E., Hoffman, M. E., Gallegos, Z. E., Williams, J. M., Los, S. A., Dimitracopoulos, F. D., Nellessen, M. A., Mason, D., Scuderi, L. A., Crossey, L. J., Gasda, P.J., Lanza, N., Gasnault, Olivier, Kite, E. S., Dietrich, W. E.

المساهمون: Institute of Meteoritics Albuquerque (IOM), The University of New Mexico Albuquerque, Los Alamos National Laboratory (LANL), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS), Lunar and Planetary Institute

المصدر: 54th Lunar and Planetary Science Conference
https://hal.science/hal-04034825Test
54th Lunar and Planetary Science Conference, Lunar and Planetary Institute, Mar 2023, The Woodlands, TX, United States. pp.2285
https://www.hou.usra.edu/meetings/lpsc2023Test/

مصطلحات موضوعية: [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP]

جغرافية الموضوع: The Woodlands, TX, United States

الوصف: International audience

العلاقة: hal-04034825; https://hal.science/hal-04034825Test; https://hal.science/hal-04034825/documentTest; https://hal.science/hal-04034825/file/2285.pdfTest

الإتاحة: https://hal.science/hal-04034825Test
https://hal.science/hal-04034825/documentTest
https://hal.science/hal-04034825/file/2285.pdfTest

المؤلفون: Falletta, S., Monegato, G., Scuderi, L.

المصدر: AIP Conference Proceedings; 2024, Vol. 3094 Issue 1, p1-4, 4p

مصطلحات موضوعية: ELASTIC wave propagation, ELASTODYNAMICS, BOUNDARY element methods, FINITE element method, ELASTIC scattering, COLLOCATION methods, INTEGRAL representations

مستخلص: We consider the decomposition into scalar potentials for the simulation of transient 2D soft scattering elastic wave propagation problems in unbounded isotropic homogeneous media. The vector elastodynamic equation is reformulated in terms of two scalar wave equations, that are coupled by the Dirichlet boundary conditions. These are successively solved by using their associated space-time Boundary Integral Equation (BIE) representations. The corresponding Boundary Element Method (BEM) is obtained by combining a time convolution quadrature formula with a classical space collocation method. Then, the same boundary integral representation and its discretization are used to define a non-reflecting condition to be imposed on an artificial boundary delimiting the exterior computational domain of interest. In this latter a Finite Element Method (FEM) is applied. [ABSTRACT FROM AUTHOR]

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المؤلفون: Pasta S, Clementi G, Genchi M, Crisafulli A, Di Dio V, Scuderi L, Traina G, La Mantia T

المساهمون: Pasta S, Clementi G, Genchi M, Crisafulli A, Di Dio V, Scuderi L, Traina G, La Mantia T

مصطلحات موضوعية: Coastal dunes, Ethnobotany, Forest Vegetation, Historical herbaria, Landscape history, Place names, Plant names., Settore AGR/05 - Assestamento Forestale E Selvicoltura

الوصف: The distribution of the three juniper species occurring in Sicily, namely Juniperus communis, J. oxycedrus subsp. macrocarpa and J. turbinata, was updated. The setup of a critical inventory of the vernacular plant names referring to these species has also allowed to carry out a systematic search for place names reported on ancient and recent cartographic documents and to identify other coastal juniper populations neglected by botanists or certainly extinct. This paper points out the probable extinction of several stands of J. oxycedrus subsp. macrocarpa and J. turbinata, reported in the literature or documented by herbarium specimens. Sporadic references made in the past two centuries to the presence of J. sabina L. in Sicily and of J. communis on the Nebrodi and Erei Mountains have not been confirmed by the surveys carried out over the past decades. Finally, several occurrence and demographic data are presented concerning several unpublished or poorly known nuclei of J. oxycedrus subsp. macrocarpa and J. turbinata; some of them have been recently discovered, such as the one near Rasocolmo on the northeastern coast of Sicily, while others, documented by herbarium specimens or already reported in old publications, had been neglected by the most recent botanical literature devoted to these conifers. Numerous field surveys enabled the authors to provide updated and detailed information on the current distribution of J. communis on Mount Etna and of J. oxycedrus subsp. macrocarpa and J. turbinata in the coastal and hillside areas of the provinces of Caltanissetta and Ragusa, previously available information on these areas being generic, dated and fragmentary. Moreover, some populations of J. oxycedrus subsp. macrocarpa found along the sandy beaches of the Agrigento and Ragusa areas probably derive from the widespread use of this species in the reforestations carried out during the last century on the dune systems once widespread along the coast of the Strait of Sicily. All the traditional local uses of the different ...

العلاقة: volume:XLVI; issue:2; firstpage:1; lastpage:48; numberofpages:48; journal:NATURALISTA SICILIANO; https://hdl.handle.net/10447/621914Test

الإتاحة: https://doi.org/10.5281/zenodo.7562240Test
https://hdl.handle.net/10447/621914Test

المؤلفون: Desiderio, L, Falletta, S, Ferrari, M, Scuderi, L

المساهمون: Desiderio, L, Falletta, S, Ferrari, M, Scuderi, L

مصطلحات موضوعية: Exterior Poisson problem, Curved virtual element method, Boundary element method, Coupling, Error estimates

الوصف: For the solution of 2D exterior Dirichlet Poisson problems, we propose the coupling of a Curved Virtual Element Method (CVEM) with a Boundary Element Method (BEM), by using decoupled approximation orders. We provide optimal convergence error estimates, in the energy and in the weaker L-2-norm, in which the CVEM and BEM contributions to the error are separated. This allows for taking advantage of the high order flexibility of the CVEM to retrieve an accurate discrete solution by using a low order BEM. The numerical results confirm the a priori estimates and show the effectiveness of the proposed approach.

العلاقة: info:eu-repo/semantics/altIdentifier/wos/WOS:000834864600007; volume:92; issue:3; numberofpages:25; journal:JOURNAL OF SCIENTIFIC COMPUTING; https://hdl.handle.net/11583/2973150Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85135382184

الإتاحة: https://doi.org/10.1007/s10915-022-01951-3Test
https://hdl.handle.net/11583/2973150Test

المؤلفون: Sinukoff, E., Fulton, B., Scuderi, L., Gaidos, E.

مصطلحات موضوعية: Astrophysics - Earth and Planetary Astrophysics

الوصف: The Solar System includes two planets --- Mercury and Mars --- significantly less massive than Earth, and all evidence indicates that planets of similar size orbit many stars. In fact, one of the first exoplanets to be discovered is a lunar-mass planet around a millisecond pulsar. Novel classes of exoplanets have inspired new ideas about planet formation and evolution, and these "sub-Earths" should be no exception: they include planets with masses between Mars and Venus for which there are no Solar System analogs. Advances in astronomical instrumentation and recent space missions have opened the sub-Earth frontier for exploration: the Kepler mission has discovered dozens of confirmed or candidate sub-Earths transiting their host stars. It can detect Mars-size planets around its smallest stellar targets, as well as exomoons of comparable size. Although the application of the Doppler method is currently limited by instrument stability, future spectrographs may detect equivalent planets orbiting close to nearby bright stars. Future space-based microlensing missions should be able to probe the sub-Earth population on much wider orbits. A census of sub-Earths will complete the reconnaissance of the exoplanet mass spectrum and test predictions of planet formation models, including whether low-mass M dwarf stars preferentially host the smallest planets. The properties of sub-Earths may reflect their low gravity, diverse origins, and environment, but they will be elusive: Observations of eclipsing systems by the James Webb Space Telescope may give us our first clues to the properties of these small worlds.
Comment: 32 pages, 7 figures, accepted for publication in Space Science Reviews

الوصول الحر: http://arxiv.org/abs/1308.6308Test

المؤلفون: Scuderi G, Fragiotta S, Scuderi L, Iodice CM, Perdicchi A

المصدر: Eye and Brain, Vol Volume 12, Pp 33-44 (2020)

مصطلحات موضوعية: retinal ganglion cells, spectral-domain optical coherence tomography, standard automated perimetry, retinal nerve fiber layer, Ophthalmology, RE1-994, Neurology. Diseases of the nervous system, RC346-429

الوصف: Gianluca Scuderi,1 Serena Fragiotta,1 Luca Scuderi,2 Clemente Maria Iodice,3 Andrea Perdicchi1 1NESMOS Department, Ophthalmology Unit, S. Andrea Hospital, University of Rome “La Sapienza”, Rome, Italy; 2Ophthalmology Unit, Department of Sense Organs, Azienda Policlinico Umberto I, University of Rome “La Sapienza”, Rome, Italy; 3Faculty of Medicine and Dentistry, University of Rome “La Sapienza”, Rome, ItalyCorrespondence: Serena FragiottaNESMOS Department, S. Andrea Hospital, Via di Grottarossa 1035-1039, Rome 00189, ItalyTel +39 3293276433Fax +39 0633776628Email s.fragiotta@hotmail.itAbstract: Glaucoma is a group of optic neuropathies characterized by a progressive degeneration of retina ganglion cells (RGCs) and their axons that precedes functional changes detected on the visual field. The macular ganglion cell complex (GCC), available in commercial Fourier-domain optical coherence tomography, allows the quantification of the innermost retinal layers that are potentially involved in the glaucomatous damage, including the retinal nerve fiber (RNFL), ganglion cell and inner plexiform layers. The average GCC thickness and its related parameters represent a reliable biomarker in detecting preperimetric glaucomatous damage. The most accurate GCC parameters are represented by average and inferior GCC thicknesses, and they can be associated with progressive visual field loss. Although the diagnostic accuracy increases with more severe glaucomatous damage and higher signal strength values, it is not affected by increasing axial length, resulting in a more accurate discrimination of glaucomatous damage in myopic eyes with respect to the traditional RNFL thickness. The analysis of the structure-function relationship revealed a good agreement between the loss in retinal sensitivity and GCC thickness. The use of a 10-2° visual field grid, adjusted for the anatomical RGCs displacement, describes more accurately the relationship between RGCs thickness and visual field sensitivity loss.Keywords: retinal ganglion cells, spectral-domain optical coherence tomography, standard automated perimetry, retinal nerve fiber layer

وصف الملف: electronic resource

العلاقة: https://www.dovepress.com/ganglion-cell-complex-analysis-in-glaucoma-patients-what-can-it-tell-u-peer-reviewed-article-EBTest; https://doaj.org/toc/1179-2744Test

الوصول الحر: https://doaj.org/article/bddc29899d8c4979b2d629614ca424feTest

المؤلفون: LAROSA A., GIANGUZZI L., SALLUZZO G., SCUDERI L., PASTA S.

المساهمون: LAROSA A., GIANGUZZI L., SALLUZZO G., SCUDERI L., PASTA S.

مصطلحات موضوعية: Endangered plant species, floristic inventories, forest vegetation, landscape history, nature conservation, Settore BIO/03 - Botanica Ambientale E Applicata

الوصف: This paper illustrates the botanic heritage of Parche di Bilello, a site located in the municipality of Castelvetrano. The study area hosts several woodland fragments dominated by Olea europaea var. sylvestris, Quercus suber and Quercus ilex, respectively. According to historical data, these nuclei represent the last remnants of an open forestland which covered a much wider coastal area between Mazara del Vallo and Sciacca until the end of Middle Age. Phytosociological relevés were focused on these forest nuclei, probably the most representative of south-western Sicily, which correspond to three habitats included in the 92/43 EEC Directive (9320, 9330 and 9340, respectively) and represent the final stage of three different edaphic series. Wild olive forests probably dominated on sandy calcareous soils, holm oaks prevailed on steep calcareous and N-exposed slopes. In contrast, cork oaks mostly occurred on sandy subacid soils issuing from pedogenetic processes on palaeodunes. Moreover, field surveys allowed to list 331 vascular plant taxa. Among them, Linaria multicaulis subsp. humilis, Orobanche balsensis and Serapias orientalis subsp. siciliensis are new to Trapani Province. Detailed information on the current distribution and the synecology of several plant taxa of high biogeographic and conservation interest is also provided. The study site also hosts one habitat of priority interest (6220, i.e. xerophilous Mediterranean perennial grasslands and annual swards) and two species protected by international laws, i.e. the orchid Ophrys lunulata and the lichen Teloschistes chrysophthalmus. Considering the high value of its natural heritage, this territory deserves the adoption of more effective protection measures. For this reason the authors recommend its inclusion as a new Site of Community Interest within the Sicilian Natura 2000 network.

العلاقة: volume:58; issue:1; firstpage:55; lastpage:74; numberofpages:20; journal:PLANT SOCIOLOGY; http://hdl.handle.net/10447/516790Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85109091268

الإتاحة: https://doi.org/10.3897/pls2020581/04Test
http://hdl.handle.net/10447/516790Test

المؤلفون: Desiderio L., Falletta S., Scuderi L.

المساهمون: Desiderio, L., Falletta, S., Scuderi, L.

مصطلحات موضوعية: Boundary Element Method, Exterior Helmholtz problem, Non Reflecting Boundary Condition, Virtual Element Method

الوصف: We present a new numerical approach to solve 2D exterior Helmholtz problems defined in unbounded domains. This consists in reducing the infinite region to a finite computational one Ω, by the introduction of an artificial boundary B, and by applying in Ω a Virtual Element Method (VEM). The latter is coupled with a Boundary Integral Non Reflecting Condition defined on B (in short BI-NRBC), discretized by a standard collocation Boundary Element Method (BEM). We show that, by choosing the same approximation order of the VEM and of the BI-NRBC discretization spaces, the corresponding method allows to obtain the optimal order of convergence. We test the efficiency and accuracy of the proposed approach on various numerical examples, arising both from literature and real life application problems.

العلاقة: info:eu-repo/semantics/altIdentifier/wos/WOS:000615986000017; volume:84; firstpage:296; lastpage:313; numberofpages:18; journal:COMPUTERS & MATHEMATICS WITH APPLICATIONS; http://hdl.handle.net/11583/2949026Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85099873322

الإتاحة: https://doi.org/10.1016/j.camwa.2021.01.002Test
http://hdl.handle.net/11583/2949026Test

المؤلفون: Gristina A., Marceno' C., Guarino R., Pasta S., Scuderi L., Perraudin V., Fazan L., Kozlowski G., Garfì G.

المساهمون: Gristina, A., Marceno', C., Guarino, R., Pasta, S., Scuderi, L., Perraudin, V., Fazan, L., Kozlowski, G., Garfì, G.

العلاقة: ispartofbook:XV INTERNATIONAL SEMINAR BIODIVERSITY MANAGEMENT AND CONSERVATION; Plant ecology and conservation in the Mediterranean; https://hdl.handle.net/11391/1558793Test

الإتاحة: https://hdl.handle.net/11391/1558793Test