cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Επίδραση της υποξίας στη γήρανση ανθρώπινων ινοβλαστών
titleType: AlternativeTitle
Creators: name: Πούλιος, Ευθύμιος
Publisher: name: University of Thessaly
Year: 2006
Subjects: subject: ΓΗΡΑΝΣΗ -- ΜΟΡΙΑΚΕΣ ΑΠΟΨΕΙΣ
subject: ΥΠΟΞΙΑ

description: Στην παρούσα διδακτορική διατριβή, μελετήθηκε η επίδραση της υποξίας στην κυτταρική γήρανση φυσιολογικών ανθρωπίνων ινοβλαστών. Αρχικά διαπιστώθηκε πως τόσο η επίδραση του υποξιομιμητικού παράγοντα C0CI2, όσο και η καλλιέργεια σε συνθήκες 1.5% Ο2, επάγουν την πρωτεϊνική έκφραση του μεταγραφικού παράγοντα HIF- 1α (Hypoxia Inducible Factor-Ια), της αντιαποπτωτικής πρωτεΐνης Bcl-2 και της επιβιωτικής πρωτεΐνης κλαστερίνης (CLU). Η επαγωγή του HIF-la ήταν mo έντονη σε αθανατοποιημένα, σε σχέση με τα φυσιολογικά (νεαρά ή γηρασμένα) κύτταρα. Στη συνέχεια εξετάστηκε η επίδραση της υποξίας στην κυτταρική επιβίωση, παρουσία κυτταροτοξικών παραγόντων, και διαπιστώθηκε πως η υποξία μικρής διάρκειας ενισχύει τη δράση τους σε φυσιολογικούς ινοβλάστες, ενώ η προσαρμογή σε συνθήκες υποξίας, μετά από παρατεταμένη καλλιέργεια, δεν έχει καμία επίδραση. Παράλληλα, φυσιολογικοί ανθρώπινοι ινοβλάστες καλλιεργήθηκαν σε συνθήκες 20%, 3% και 1.5% C>2, και διαπιστώθηκε πως η υποξία (1.5% Ο2) επάγει τον κυτταρικό πολλαπλασιασμό και την πρωτεϊνική έκφραση του HIF-la, ενώ μειώνει την έκφραση των αναστολέων του κυτταρικού κύκλου ρ16 και ρ21. Καλλιέργεια σε συνθήκες 3% Ο2 αυξάνει το πολλαπλασιαστικό δυναμικό σε μικρότερο βαθμό. Μελέτες πάνω στην οξειδωτική κατάσταση των υποξικών κυττάρων έδειξαν πως τα επίπεδα ενεργών μορφών οξυγόνου (ROS) δεν επηρεάστηκαν από τη χαμηλή συγκέντρωση του οξυγόνου, ενώ η ενεργότητα του αντιοξειδωτικού ενζύμου υπεροξειδική δισμουτάση (SOD) εμφανίστηκε μειωμένη μόνο κατά τις πρώτες κυτταρικές διαιρέσεις. Αντιθέτως, η ενεργότητα του κύριου πρωτεολυτικού μηχανισμού του κυττάρου, του πρωτεασώματος, διατηρήθηκε σε υψηλά επίπεδα καθόλη τη διάρκεια της ζωής των υποξικών κυττάρων. Τέλος, το μέγεθος των τελομερών, που αποτελεί σήμα κυτταρικής γήρανσης, δεν επηρεάζεται σημαντικά από την υποξία. Συμπερασματικά, από τα αποτελέσματα της παρούσας διδακτορικής διατριβής προκύπτει πως η υποξία παίζει σημαντικό ρόλο στην πρωτεϊνική έκφραση (με ενεργοποίηση εmβιωτικώv γονιδίων), στην κυτταρική επιβίωση (με ενίσχυση της κυτταροτοξικότητας χημειοθεραπευτικών παραγόντων) και στον κυτταρικό πολλαπλασιασμό (με επαγωγή της κυτταρικής διαίρεσης και αύξηση της ενεργότητας του πρωτεασώματος). Τα παραπάνω δεδομένα καταδεικνύουν τη σημαντικότητα του ρόλου του οξυγόνου για την επιβίωση και τον κύκλο ζωής των φυσιολογικών ανθρωπίνων κυττάρων.
Diffraction of fast atoms and molecules from surfaces
Creators: name: Manson, J. R.
name: Khemliche, Hocine
name: Roncin, Philippe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Prompted by recent experimental developments, a theory of surface scattering of fast atoms at grazing incidence is developed. The theory gives rise to a quantum mechanical limit for ordered surfaces that describes coherent diffraction peaks whose thermal attenuation is governed by a Debye-Waller factor, however, this Debye-Waller factor has values much larger than would be calculated using simple models. A classical limit for incoherent scattering is obtained for high energies and temperatures. Between these limiting classical and quantum cases is another regime in which diffraction features appear that are broadened by the motion in the fast direction of the scattered beam but whose intensity is not governed by a Debye-Waller factor. All of these limits appear to be accessible within the range of currently available experimental conditions.
description: 37 pages including 3 figures
title: Orbital masses: more than meets the eye
Creators: name: Desaga, Cristina Elena
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Eyes
subject: Anatomy
subject: Oncology
subject: CT
subject: MR
subject: Education
subject: Diagnostic procedure
subject: Staging
subject: Metastases
subject: Multidisciplinary cancer care

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of this poster is to describe the key anatomical features of the orbit and to emphasize the role of imaging in detection and characterization of orbital tumoral...
Theory of a Narrow roton Absorption Line in the Spectrum of a Disk-Shaped SHF Resonator
Creators: name: Loktev, Vadim M.
name: Tomchenko, Maksim D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We calculate the probability of the birth of a circular phonon (c-phonon) in He II by a c-photon of the resonator. It is shown that this probability has sharp maxima at frequencies, where the effective group velocity of the c-phonon is equal to zero; the density of states of c-phonons strongly grows at such frequencies. For He II, these frequencies correspond to a roton and a maxon. From the probability of the c-roton birth, we calculate the roto line width which is found to approximately agree with the experimental one. We conclude that the roton line observed in the super-high-frequency (SHF) absorption spectrum of helium is related to the birth of c-rotons. A possible interpretation of the Stark effect observed for the roton line is also proposed.
description: 13 pages, 1 figure, v2: journal variant, several minor corrections
Leading Catholic schools that don’t look Catholic: The identity of Catholic Flexi schools in Australia and the challenges for those who lead them
Creators: name: Taylor, Adam
Publisher: name: University of Melbourne
Year: 2023
Subjects: classificationCode: 390499
subject: Specialist studies in education not elsewhere classified
classificationCode: 500599
subject: Theology not elsewhere classified
classificationCode: 500499
subject: Religious studies not elsewhere classified
classificationCode: 500401
subject: Christian studies
classificationCode: 500405
subject: Religion, society and culture
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 390306
subject: Secondary education
classificationCode: 390112
subject: Religion curriculum and pedagogy
classificationCode: 390403
subject: Educational administration, management and leadership

description: Also published in Review of Religious Education & Theology, 3, 1–27AbstractCatholic Flexi schools are an alternative type of school that operate within the Australian schooling system. The paper focuses on Flexis operated by Edmund Rice Education Australia (EREA), the largest provider of flexible education across all education sectors in Australia. They serve young people who have been disenfranchised from mainstream schooling. By their nature, Flexi schools are different in character to mainstream Catholic schools in Australia. Both the young people and the staff of Flexis do not contain the critical mass of Catholics that continue to be evident in other Catholic schools in Australia in spite of changing demographics. This presents a challenge for Flexi schools’ identity leaders, their principals, whose Catholicity is a factor in their recruitment and for whom identity leadership is an expectation of their role. The makeup of Flexis in terms of their young people, their staff, and their principals is then considered. Thereafter and with particular reference to The Identity of the Catholic School for a Culture of Dialogue (CCE, 2022), the Catholic identity of Flexis compared to mainstream Catholic schools in Australia is investigated. Traditional Catholic schools express their Catholic identity through an explicit religious education curriculum, overt religious symbols and iconography, Catholic rituals, and a liturgical and prayer life. The elements of Flexi Catholic identity are a humanising education; inclusivity; a positive anthropology of the human person that is hope-filled and non-judgmental; dialogue; and a practical encounter with the poor and the marginalised which has a “fragrance of the Gospel” because its practitioners “take on the ‘smell of the sheep’” (Francis, 2013, §39; 24). It is suggested that Flexi principals are crucially important and well placed to animate the Catholic identity of their schools through staff formation that honours receptive ecumenism and welcomes interfaith dialogue.
title: Imaging findings of spontaneous haemorrhagic complications of anticoagulant therapy
Creators: name: Coroliuc, Alina
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Emergency
subject: Vascular
subject: CT
subject: Diagnostic procedure
subject: Haemorrhage

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Describe potential sites of spontaneous haemorrhage in anticoagulated patients. Describe clinical manifestations of spontaneous haemorrhage caused by anticoagulant therapy. Describe the technique of study, ultrasound and computed tomography (CT)....
Evolution of Thermally Pulsing Asymptotic Giant Branch Stars IV. Constraining Mass-Loss & Lifetimes of Low Mass, Low Metallicity AGB Stars
Creators: name: Rosenfield, Philip
name: Marigo, Paola
name: Girardi, Leo
name: Dalcanton, Julianne J.
name: Bressan, Alessandro
name: Gullieuszik, Marco
name: Weisz, Daniel
name: Williams, Benjamin F.
name: Dolphin, Andrew
name: Aringer, Bernhard
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The evolution and lifetimes of thermally pulsating asymptotic giant branch (TP-AGB) stars suffer from significant uncertainties. In this work, we analyze the numbers and luminosity functions of TP-AGB stars in six quiescent, low metallicity ([Fe/H] $\lesssim -0.86$) galaxies taken from the ANGST sample, using HST photometry in both optical and near-infrared filters. The galaxies contain over 1000 TP-AGB stars (at least 60 per field). We compare the observed TP-AGB luminosity functions and relative numbers of TP-AGB and RGB stars, to models generated from different suites of TP-AGB evolutionary tracks after adopting star formation histories (SFH) derived from the HST deep optical observations. We test various mass-loss prescriptions that differ in their treatments of mass-loss before the onset of dust-driven winds (pre-dust). These comparisons confirm that pre-dust mass-loss is important, since models that neglect pre-dust mass-loss fail to explain the observed TP-AGB/RGB ratio or the luminosity functions. In contrast, models with more efficient pre-dust mass-loss produce results consistent with observations. We find that for [Fe/H]$\lesssim-0.86$, lower mass TP-AGB stars ($M\lesssim1M_\odot$) must have lifetimes of $\sim0.5$ Myr and higher masses ($M\lesssim 3M_\odot$) must have lifetimes $\lesssim 1.2$ Myr. In addition, assuming our best-fitting mass-loss prescription, we show that the third dredge up has no significant effect on TP-AGB lifetimes in this mass and metallicity range.
description: Accepted for publication in the Astrophysical Journal. Isochrones will be soon available at http://stev.oapd.inaf.it/cmd
Pointwise well-posedness in vector optimization and variational inequalities
Creators: name: Ferrentino, Rosa
Publisher: name: Universita' degli Studi di Salerno
Year: 2005

description: In this note we consider some notions of well-posedness for scalar and vector variational inequalities and we recall their connections with optimization problems. Subsequently, we investigate similar connections between well-posedness of a vector optimization problem and a related variational inequality problem and we present an result obtained with scalar characterizations of vector optimality concepts.
On the Possibility of "Dry" Friction in Superfluid He-4
Creators: name: Tomchenko, Maksim D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose a possible microscopic explanation of the exhaustion of ρ_s of helium-II on the wall at T>T_{c} = 0.5 - 1 K and predict a possibility of the existence in He-II of the "dry" friction at T < T_{c}. Both of the effects connect with that the energy of the 2D-rotons is 2K less then the energy of 3D-rotons, so the wall is a potential well for the last ones.
description: 3 pages, 1 figure
Choroba - bliski - utrata. narracja maladyczna w późnej poezji ludmiły Marjańskiej
Creators: name: Morzyńska-Wrzosek, Beata
Publisher: name: Universita' degli Studi di Salerno
Year: 2018
Subjects: Anthropological literary studies
Contemporary Polish women’s poetry
The absence of intimacy
The perspective of a carer
Alzheimer’s disease

description: The sickness narrative characterizes disease as a process of change, decay and instability, which indicates the need to redefine itself. The most often described subjects of analysis are diseases such as cancer, AIDS and heart attacks. Diseases with less known aetiology, such as those associated with brain function disorders, are less often culturally interpreted. Ludmiła Marjańska in her recent poetry, in particular the collection entitled Żywica, deals with the problem of staying with a relative who suffers from dementia. It records her careful observations of her husband and the recognition of herself as being in a crisis which radically transforms their previous intimacy. It also registers changes in the behavior of the person with dementia, the gradual loss of their mental and physical abilities, reminiscences of the past. Important indicators of her narration are: an acceptance of her weakness, her sense of despair and helplessness, her attachment to her ill husband, and the acceptance of his weakness. The poet enriches the cultural discourse devoted to illness related issues with a subjective reflection on accompanying a relative during his loss of identity and the dramatic contraction of his perception of himself and the world.
title: Adult hip ultrasound: a didactic approach for a correct examination
Creators: name: Rusconi, Giovanni
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Education and training
subject: Education
subject: Ultrasound
subject: Musculoskeletal system
subject: Musculoskeletal joint
subject: Anatomy

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of our educational exhibit is to describe a systematic technique for ultrasound (US) evaluation of the hip structures, by illustrating their normal anatomy and US appearance. We will provide anatomical didactic schemes, showing correlations...
Microstructure of He II in the presence of boundaries
Creators: name: Tomchenko, Maksim D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have studied the microstructure of a system of interacting Bose particles under zero boundary conditions and have found two possible orderings. One ordering is traditional and is characterized by the Bogolyubov dispersion law E^2 = (h^2 k^2/2m)^{2} + qnν(k)[h^2 k^2/m] (with q=1) at a weak interaction. The second one is new and is characterized by the same dispersion law, but with q=2^{-f}, where $f$ is the number of noncyclic coordinates. At a weak interaction, the ground-state energy is less for the new solution. The boundaries affect the bulk microstructure due to the difference of the topologies of closed and open systems.
description: 17 pages, 2 figures, v5: explanations are revised; v6: journal version
Note on "Finite Field-Energy and Interparticle Potential in Logarithmic Electrodynamics"
Creators: name: Gitman, D.
name: Shabad, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose an identification of the free parameter in the model of nonlinear electrodynamics proposed in P. Gaete and J. Helayel-Neto, Eur. Phys. J. C 74, 2816 (2014) by equating the second term in the power expansion of its Lagrangian with that in the expansion of the Heiseberg-Euler Lagrangian. The resulting value of the field-energy of a point-like charge makes 0.988 of the electron mass, if the charge is that of the electron.
description: 2 pages, a comment on a published work, to be submitted to Eur. Phys. J. C
MRI-measured adipose features as predictive factors for detection of prostate cancer in males undergoing systematic prostate biopsy: a retrospective study based on a Chinese population
Creators: name: Xiong, Tianyu
name: Cao, Fang
name: Zhu, Guangyi
name: Ye, Xiaobo
name: Cui, Yun
name: Zhang, Huibo
name: Niu, Yinong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: In this study, we retrospectively evaluated the data of 901 men undergoing ultrasonography-guided systematic prostate biopsy between March 2013 and May 2022. Adipose features, including periprostatic adipose tissue (PPAT) thickness and subcutaneous fat thickness, were measured using MRI before biopsy. Prediction models of all PCa and clinically significant PCa (csPCa) (Gleason score higher than 6) were established based on variables selected by multivariate logistic regression and prediction nomograms were constructed. Patients with PCa had higher PPAT thickness (4.64 [3.65–5.86] vs. 3.54 [2.49–4.51] mm, p < 0.001) and subcutaneous fat thickness (29.19 [23.05–35.95] vs. 27.90 [21.43–33.93] mm, p = 0.013) than those without PCa. Patients with csPCa had higher PPAT thickness (4.78 [3.80–5.88] vs. 4.52 [3.80–5.63] mm, p = 0.041) than those with non-csPCa. Adding adipose features to the prediction models significantly increased the area under the receiver operating characteristics curve for the prediction of all PCa (0.850 vs. 0.819, p < 0.001) and csPCa (0.827 vs. 0.798, p < 0.001). Based on MRI-measured adipose features and clinical parameters, we established two nomograms that were simple to use and could improve patient selection for prostate biopsy in Chinese population.
Selling Multiple Correlated Goods: Revenue Maximization and Menu-Size Complexity (old title: "The Menu-Size Complexity of Auctions")
Creators: name: Hart, Sergiu
name: Nisan, Noam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Theoretical Economics (econ.TH)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: We consider the well known, and notoriously difficult, problem of a single revenue-maximizing seller selling two or more heterogeneous goods to a single buyer whose private values for the goods are drawn from a (possibly correlated) known distribution, and whose valuation is additive over the goods. We show that when there are two (or more) goods, _simple mechanisms_ -- such as selling the goods separately or as a bundle -- _may yield only a negligible fraction of the optimal revenue_. This resolves the open problem of Briest, Chawla, Kleinberg, and Weinberg (JET 2015) who prove the result for at least three goods in the related setup of a unit-demand buyer. We also introduce the menu size as a simple measure of the complexity of mechanisms, and show that the revenue may increase polynomially with _menu size_ and that no bounded menu size can ensure any positive fraction of the optimal revenue. The menu size also turns out to "pin down" the revenue properties of deterministic mechanisms.
description: Presented at the 2013 ACM EC conference
title: CT perfusion maps of liver computed with different methods match
Creators: name: Mottola, Margherita
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Computer applications
subject: Abdomen
subject: Liver
subject: CT
subject: CT-Quantitative
subject: Computer Applications-General
subject: Imaging sequences
subject: Haemodynamics / Flow dynamics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: In oncology, the new biological target therapies cause early changes in tumour vascularity far before the morphological alterations induced by chemotherapy. Therefore, the use of the functional imaging is more appropriate than the morphological one...
title: Η σημασία της τοπικής ιστικής οξυγόνωσης του εγκεφάλου στη έκβαση των ενδοεγκεφαλικών αιματωμάτων
titleType: AlternativeTitle
Creators: name: Κομνός, Απόστολος Γ.
Publisher: name: University of Thessaly
Year: 2004
Subjects: subject: ΕΓΚΕΦΑΛΟΣ -- ΧΕΙΡΟΥΡΓΙΚΗ
subject: ΕΓΚΕΦΑΛΟΑΓΓΕΙΑΚΕΣ ΔΙΑΤΑΡΑΧΕΣ

description: Σκοπός της εργασίας ήταν η μελέτη της διαγνωστικής και προγνωστικής αξιοπιστίας της παρακολούθησης της ιστικής οξυγόνωσης σε ασθενείς με ενδοεγκεφαλικά αιματώματα. Στην μελέτη συμπεριλήφθησαν 33 ασθενείς ( 22 άνδρες, 11 γυναίκες, ηλικίας 14-76 ετών) με νευρολογική κλίμακα Γλασκόβης < 8. Η εκτίμηση της κλινικής έκβασης μετά το διάστημα ενός εξαμήνου, έγινε σύμφωνα με τη νευρολογική κλίμακα Γλασκόβης εξόδου. Σε αντιδιαστολή με το καθιερωμένο monitoring της ICP, CPP και SjV02 εισάγεται στον εγκεφαλικό ιστό ένας πολαρογραφικός καθετήρας Licox μετά από βαθμονόμηση σύμφωνα με τις οδηγίες του κατασκευαστή. Οι ασθενείς παρακολουθήθηκαν στην Μονάδα Εντατικής Θεραπείας του Γενικού Νοσοκομείου Λάρισας για διάστημα έως και 20 ημερών. Η μελέτη κατέστησε σαφές ότι η συνεχής μέτρηση της εγκεφαλικής οξυγόνωσης με τη ενδοπαρεγχυματική τοποθέτηση ενός καθετήρα τύπου Clark, είναι μία αξιόπιστη μέθοδος, κλινικά εφαρμόσιμη και ασφαλής. Ασθενείς με ιστική οξυγόνωση εγκεφάλου μεγαλύτερη των 10 mm Hg είχαν αυξημένη πιθανότητα καλής έκβασης, ενώ ασθενείς με τιμές μικρότερες των 10 mm Hg είχαν μεγαλύτερες πιθανότητες κακής έκβασης (ρ<0,02). Οι πολλαπλές πτώσεις της τιμής της pti02 επιδεινώνουν την έκβαση των ασθενών με βαριά εγκεφαλική αιμορραγία(ρ<0,02). Η αυξημένη ενδοκράνια πίεση κατά την διάρκεια της οξείας φάσης επιδεινώνει την έκβαση. (ρ<0,01).Η διατήρηση τιμής άρδευσης του εγκεφάλου μεγαλύτερης των 60 mm Hg βελτιώνει την έκβαση (ρ<0,02). Δεν βρέθηκε στατιστική συσχέτιση της έκβασης με τις τιμές της Sjv02. Η έκβαση των ασθενών αυτών δεν φαίνεται να επηρεάζεται από την χειρουργική ή συντηρητική αντιμετώπιση. Όσο βαρύτερη είναι η νευρολογική κατάσταση των ασθενών κατά την εισαγωγή, τόσο μεγαλύτερη η πιθανότητα να παρουσιάσουν αυξημένη ενδοκράνια πίεση κατά την διάρκεια της νοσηλείας τους(ρ<0,02). Η έκβαση εξαρτάται από την νευρολογική κατάσταση του ασθενούς κατά την εισαγωγή (ρ^),05). Τα αποτελέσματα της μελέτης μας αποδεικνύουν την αποτελεσματικότητα της παρακολούθησης της ιστικής οξυγόνωσης του εγκεφάλου στη θεραπεία ασθενών με εγκεφαλικά αιματώματα, η οποία και αποτελεί αξιόπιστο εργαλείο στην πρόγνωση της έκβασης
Approximation of conformal mappings and novel applications to shape recognition of planar domains
Creators: name: Hersonsky, Sa'ar
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary: 30C20, Secondary:31A25, 65EG10

description: Our goal is to provide a novel method of representing 2D shapes, where each shape will be assigned a unique fingerprint - a computable approximation to a conformal map of the given shape to a canonical shape in 2D or 3D space (see page 22 for a few examples). In this paper, we make the first significant step in this program where we address the case of simply, and doubly-connected planar domains. We prove uniform convergence of our approximation scheme to the appropriate conformal mapping. Along the way, we affirm a conjecture raised by Ken Stephenson in the 90's which predicts that the Riemann mapping can be approximated by a sequence of electrical networks. In fact, we first treat a more general case. Consider a planar annulus, i.e., a bounded, two-connected, Jordan domain, endowed with a sequence of triangulations exhausting it. We construct a corresponding sequence of maps which converge uniformly on compact subsets of the domain, to a conformal homeomorphism onto the interior of a Euclidean annulus bounded by two concentric circles. The resolution of Stephenson's Conjecture then follows by a limiting argument. Our methods involve harmonic mappings and boundary value problems: discrete and analytic in the plane. The scheme we constructed is programmable.
description: This is the (more or less) published paper that appeared in The Journal of Supercomputing, (74), 2018, 6333--6368
title: MR defecography: tips and tricks for a routine clinical use
Creators: name: Mazza, Giancarlo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Gastrointestinal tract
subject: Genital / Reproductive system female
subject: MR
subject: MR-Functional imaging
subject: Defecography
subject: Quality assurance
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: In our poster we would like to suggest some tips and tricks that can be used to obtain an optimal execution of a MR...
Taylor, A. J. (2023). Leading Catholic schools that don’t look Catholic: The identity of Catholic Flexi schools in Australia and the challenges for those who lead them. Review of Religious Education & Theology, 3, 1–27.
Creators: name: Taylor, Adam
Publisher: name: University of Melbourne
Year: 2023
Subjects: classificationCode: 390499
subject: Specialist studies in education not elsewhere classified
classificationCode: 500599
subject: Theology not elsewhere classified
classificationCode: 500499
subject: Religious studies not elsewhere classified
classificationCode: 500401
subject: Christian studies
classificationCode: 500405
subject: Religion, society and culture
classificationCode: 399999
subject: Other education not elsewhere classified
classificationCode: 390306
subject: Secondary education
classificationCode: 390112
subject: Religion curriculum and pedagogy
classificationCode: 390403
subject: Educational administration, management and leadership

description: AbstractCatholic Flexi schools are an alternative type of school that operate within the Australian schooling system. The paper focuses on Flexis operated by Edmund Rice Education Australia (EREA), the largest provider of flexible education across all education sectors in Australia. They serve young people who have been disenfranchised from mainstream schooling. By their nature, Flexi schools are different in character to mainstream Catholic schools in Australia. Both the young people and the staff of Flexis do not contain the critical mass of Catholics that continue to be evident in other Catholic schools in Australia in spite of changing demographics. This presents a challenge for Flexi schools’ identity leaders, their principals, whose Catholicity is a factor in their recruitment and for whom identity leadership is an expectation of their role. The makeup of Flexis in terms of their young people, their staff, and their principals is then considered. Thereafter and with particular reference to The Identity of the Catholic School for a Culture of Dialogue (CCE, 2022), the Catholic identity of Flexis compared to mainstream Catholic schools in Australia is investigated. Traditional Catholic schools express their Catholic identity through an explicit religious education curriculum, overt religious symbols and iconography, Catholic rituals, and a liturgical and prayer life. The elements of Flexi Catholic identity are a humanising education; inclusivity; a positive anthropology of the human person that is hope-filled and non-judgmental; dialogue; and a practical encounter with the poor and the marginalised which has a “fragrance of the Gospel” because its practitioners “take on the ‘smell of the sheep’” (Francis, 2013, §39; 24). It is suggested that Flexi principals are crucially important and well placed to animate the Catholic identity of their schools through staff formation that honours receptive ecumenism and welcomes interfaith dialogue.
The tempered spectrum of a real spherical space
Creators: name: Knop, Friedrich
name: Krötz, Bernhard
name: Schlichtkrull, Henrik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let G/H be a unimodular real spherical space which is either absolutely spherical or wave-front. It is shown that every tempered representation of G/H embeds into a relative discrete series of a boundary degeneration of G/H. If in addition G/H is of wave-front type it follows that the tempered representation is parabolically induced from a discrete series representation of a lower dimensional real spherical space. Final version. To appear in Acta Math.
description: 64 pages
Quasi-satellite orbits in the general context of dynamics in the 1:1 mean motion resonance. Perturbative treatment
Creators: name: Sidorenko, V.
name: Neishtadt, A.
name: Artemyev, A.
name: Zelenyi, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences
subject: 70F07

description: Our investigation is motivated by the recent discovery of asteroids orbiting the Sun and simultaneously staying near one of the Solar System planets for a long time. This regime of motion is usually called the quasi-satellite regime, since even at the times of the closest approaches the distance between the asteroid and the planet is significantly larger than the region of space (the Hill's sphere) in which the planet can hold its satellites. We explore the properties of the quasi-satellite regimes in the context of the spatial restricted circular three-body problem "Sun-planet-asteroid". Via double numerical averaging, we construct evolutionary equations which describe the long-term behaviour of the orbital elements of an asteroid. Special attention is paid to possible transitions between the motion in a quasi-satellite orbit and the one in another type of orbits available in the 1:1 resonance. A rough classification of the corresponding evolutionary paths is given for an asteroid's motion with a sufficiently small eccentricity and inclination.
description: 38 pages, 17 figures; accepted for publication, Celestial Mechanics and Dynamical Astronomy, 2014; corrected typos
title: Post-surgical aortic findings. Is it normal or complication?
Creators: name: Lama, Niki
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cardiovascular system
subject: Arteries / Aorta
subject: CT-Angiography
subject: CT
subject: Computer Applications-Detection, diagnosis
subject: Aneurysms

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: An extensive and diverse spectrum of diseases require thoracic aortic surgery, either in emergency need or as an elective procedure. The most important aortic pathological conditions needing treatmentare aortic dissection, intramural...
title: Optimized Protocol For Detecting Supratentorial Lesions In Patients With Multiple Sclerosis
Creators: name: Fileva, Nevena
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neuroradiology brain
subject: MR
subject: Diagnostic procedure
subject: Pathology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Multiple sclerosis (MS) is a chronical disease of the central nervous system (CNS) affecting young adults between 20 and 40, predominantly females. It includes simultaneous processes of inflammation, demyelination, axonal loss and gliosis. Typical...
MRI-measured adipose features as predictive factors for detection of prostate cancer in males undergoing systematic prostate biopsy: A retrospective study based on a Chinese population
Creators: name: Xiong, Tianyu
name: Cao, Fang
name: Zhu, Guangyi
name: Ye, Xiaobo
name: Cui, Yun
name: Zhang, Huibo
name: Niu, Yinong
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Purpose: In this retrospective study, we aimed to analyze the predictive value of adipose features measured using magnetic resonance imaging (MRI) for the detection of prostate cancer (PCa) on biopsy. Methods: We retrospectively evaluated the data of 901 men undergoing ultrasonography-guided systematic prostate biopsy between March 2013 and May 2022. Adipose features, including periprostatic adipose tissue (PPAT) thickness and subcutaneous fat thickness, were measured using MRI before biopsy. Prediction models of all PCa and clinically significant PCa (csPCa) (Gleason score higher than 6) were established based on variables selected by multivariate logistic regression and prediction nomograms were constructed. Results: Patients with PCa had higher PPAT thickness (4.64 [3.65–5.86] vs. 3.54 [2.49–4.51] mm, p <0.001) and subcutaneous fat thickness (29.19 [23.05–35.95] vs. 27.90 [21.43–33.93] mm, p = 0.013) than those without PCa. Patients with csPCa had higher PPAT thickness (4.78 [3.80–5.88] vs. 4.52 [3.80–5.63] mm, p = 0.041) than those with non-csPCa. Adding adipose features to the prediction models significantly increased the area under the receiver operating characteristics curve for the prediction of all PCa (0.850 vs. 0.819, p <0.001) and csPCa (0.827 vs. 0.798, p <0.001), with overall categorical net reclassification improvements of 0.276 and 0.165, respectively. Internal validation showed that both nomograms were well calibrated, with an accuracy of 0.778 for all PCa and 0.748 for csPCa. Conclusion: Based on MRI-measured adipose features and clinical parameters, we established two nomograms that were simple to use and could improve patient selection for prostate biopsy in Chinese population.
An obstruction to small time local null controllability for a viscous Burgers' equation
Creators: name: Marbach, Frédéric
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this work, we are interested in the small time local null controllability for the viscous Burgers' equation $y_t - y_{xx} + y y_x = u(t)$ on the line segment $[0,1]$, with null boundary conditions. The second-hand side is a scalar control playing a role similar to that of a pressure. In this setting, the classical Lie bracket necessary condition $[f_1,[f_1,f_0]]$ introduced by Sussmann fails to conclude. However, using a quadratic expansion of our system, we exhibit a second order obstruction to small time local null controllability. This obstruction holds although the information propagation speed is infinite for the Burgers equation. Our obstruction involves the weak $H^{-5/4}$ norm of the control $u$. The proof requires the careful derivation of an integral kernel operator and the estimation of residues by means of weakly singular integral operator estimates.
title: Late adulthood male breast sonography
Creators: name: Gunbey Karabekmez, Leman
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Breast
subject: Ultrasound
subject: Diagnostic procedure
subject: Cancer
subject: Pathology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Despite it is not as common as women breast problems men are also in the interest of breast radiology. The breast carcinoma of men is mostly seen at elderly patients. Since the prognosis of breast carcinoma is bad and early diagnosis is important in...
title: Post- treatment changes in breast – Role of advanced Imaging.
Creators: name: Raghavan, Bagyam
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Multidisciplinary cancer care
subject: Treatment effects
subject: PET-CT
subject: MR
subject: Mammography
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: In recent years surgical options for breast cancer & cosmesis has developed dramatically.Various breast conservation surgeries have evolved for early breast malignancies. The main objective is : 1.To be familiar with thevarious types of surgeriesfor...
title: Meningioma and beyond: a review of benign extra-axial tumors
Creators: name: Sánchez Nava, Dulce
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Diagnostic procedure
subject: MR
subject: CT
subject: CNS

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To consolidate the knowledge on benign extra-axial tumors. 2. To learn about the basic radiologic approach when interpreting extra-axial tumors. 3. To become familiar with the typical imaging findings in meningioma, other tumors (vestibular...
Fast atom diffraction inside a molecular beam epitaxy chamber, a rich combination
Creators: name: Debiossac, M.
name: Atkinson, P.
name: Zugarramurdi, A.
name: Eddrief, M.
name: Finocchi, F.
name: Etgens, V. H.
name: Momeni, A.
name: Khemliche, H.
name: Borisov, A. G.
name: Roncin, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Two aspects of the contribution of grazing incidence fast atom diffraction (GIFAD) to molecular beam epitaxy (MBE) are reviewed here: the ability of GIFAD to provide \emph{in-situ} a precise description of the atomic-scale surface topology, and its ability to follow larger-scale changes in surface roughness during layer-by-layer growth. Recent experimental and theoretical results obtained for the He atom beam incident along the highly corrugated $[ 1\bar{1}0 ]$ direction of the $β_{2}$(2$\times$4) reconstructed GaAs(001) surface are summarized and complemented by the measurements and calculations for the beam incidence along the weakly corrugated [010] direction where a periodicity twice smaller as expected is observed. The combination of the experiment, quantum scattering matrix calculations, and semiclassical analysis allows in this case to reveal structural characteristics of the surface. For the in situ measurements of GIFAD during molecular beam epitaxy of GaAs on GaAs surface we analyse the change in elastic and inelastic contributions in the scattered beam, and the variation of the diffraction pattern in polar angle scattering. This analysis outlines the robustness, the simplicity and the richness of the GIFAD as a technique to monitor the layer-by-layer epitaxial growth.
Role of lncRNA LIPE-AS1 in adipogenesis
Creators: name: Thunen, Alyssa
name: La Placa, Deirdre
name: Zhang, Zhifang
name: Shively, John E.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Recent studies have identified long non-coding RNAs (lncRNAs) as potential regulators of adipogenesis. In this study, we have characterized a lncRNA, LIPE-AS1, that spans genes CEACAM1 to LIPE in man with conservation of genomic organization and tissue expression between mouse and man. Tissue-specific expression of isoforms of the murine lncRNA were found in liver and adipose tissue, one of which, designated mLas-V3, overlapped the Lipe gene encoding hormone-sensitive lipase in both mouse and man suggesting that it may have a functional role in adipose tissue. Knock down of expression of mLas-V3 using anti-sense oligos (ASOs) led to a significant decrease in the differentiation of the OP9 pre-adipocyte cell line through the down regulation of the major adipogenic transcription factors Pparg and Cebpa. Knock down of mLas-V3 induced apoptosis during the differentiation of OP9 cells as shown by expression of active caspase-3, a change in the localization of LIP/LAP isoforms of C/EBPβ, and expression of the cellular stress induced factors CHOP, p53, PUMA, and NOXA. We conclude that mLas-V3 may play a role in protecting against stress associated with adipogenesis, and its absence leads to apoptosis.
title: Monitoring of Direct Action Antiviral Therapy in Patients with HCV infection through use of Point Shear Wave Elastography
Creators: name: MACCHI, MONICA
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Inflammation
subject: Infection
subject: Treatment effects
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Elastography
subject: Ultrasound physics
subject: Liver
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate early changes in liver stiffness (LS) as non-invasive marker of liver fibrosis measured with Point Shear Wave Elastography (p-SWE) in patients with HCV infection treated with direct action antiviral therapy (DAAs) by comparing...
Direct observations of magnetic flux rope formation during a solar coronal mass ejection
Creators: name: Song, Hongqiang
name: Zhang, Jie
name: Chen, Yao
name: Cheng, Xin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal mass ejections (CMEs) are the most spectacular eruptive phenomena in the solar atmosphere. It is generally accepted that CMEs are results of eruptions of magnetic flux ropes (MFRs). However, a heated debate is on whether MFRs pre-exist before the eruptions or they are formed during the eruptions. Several coronal signatures, \textit{e.g.}, filaments, coronal cavities, sigmoid structures and hot channels (or hot blobs), are proposed as MFRs and observed before the eruption, which support the pre-existing MFR scenario. There is almost no reported observation about MFR formation during the eruption. In this letter, we present an intriguing observation of a solar eruptive event occurred on 2013 November 21 with the Atmospheric Imaging Assembly on board the \textit{Solar Dynamic Observatory}, which shows a detailed formation process of the MFR during the eruption. The process started with the expansion of a low-lying coronal arcade, possibly caused by the flare magnetic reconnection underneath. The newly-formed ascending loops from below further pushed the arcade upward, stretching the surrounding magnetic field. The arcade and stretched magnetic field lines then curved-in just below the arcade vertex, forming an X-point. The field lines near the X-point continued to approach each other and a second magnetic reconnection was induced. It is this high-lying magnetic reconnection that led to the formation and eruption of a hot blob ($\sim$ 10 MK), presumably a MFR, producing a CME. We suggest that two spatially-separated magnetic reconnections occurred in this event, responsible for producing the flare and the hot blob (CME), respectively.
description: Accepted by the Astrophysical Journal Letters (14 pages, 5 figures)
Minimum Rectilinear Polygons for Given Angle Sequences
Creators: name: Evans, William S.
name: Fleszar, Krzysztof
name: Kindermann, Philipp
name: Saeedi, Noushin
name: Shin, Chan-Su
name: Wolff, Alexander
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: A rectilinear polygon is a polygon whose edges are axis-aligned. Walking counterclockwise on the boundary of such a polygon yields a sequence of left turns and right turns. The number of left turns always equals the number of right turns plus 4. It is known that any such sequence can be realized by a rectilinear polygon. In this paper, we consider the problem of finding realizations that minimize the perimeter or the area of the polygon or the area of the bounding box of the polygon. We show that all three problems are NP-hard in general. This answers an open question of Patrignani [CGTA 2001], who showed that it is NP-hard to minimize the area of the bounding box of an orthogonal drawing of a given planar graph. We also show that realizing polylines with minimum bounding box area is NP-hard. Then we consider the special cases of $x$-monotone and $xy$-monotone rectilinear polygons. For these, we can optimize the three objectives efficiently.
description: New result: NP-hardness of drawing polylines
Long-term in vivo survival of 3D-bioprinted human lipoaspirate-derived adipose tissue: proteomic signature and cellular content
Creators: name: Säljö, Karin
name: Apelgren, Peter
name: Orrhult, Linnea Stridh
name: Li, Susann
name: Amoroso, Matteo
name: Gatenholm, Paul
name: Kölby, Lars
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Three-dimensional (3D)-bioprinted lipoaspirate-derived adipose tissue (LAT) is a potential alternative to lipo-injection for correcting soft-tissue defects. This study investigated the long-term in vivo survival of 3D-bioprinted LAT and its proteomic signature and cellular composition. We performed proteomic and multicolour flow cytometric analyses on the lipoaspirate and 3D-bioprinted LAT constructs were transplanted into nude mice, followed by explantation after up to 150 days. LAT contained adipose-tissue-derived stem cells (ASCs), pericytes, endothelial progenitor cells (EPCs) and endothelial cells. Proteomic analysis identified 6,067 proteins, including pericyte markers, adipokines, ASC secretome proteins, proangiogenic proteins and proteins involved in adipocyte differentiation and developmental morphogenic signalling, as well as proteins not previously described in human subcutaneous fat. 3D-bioprinted LAT survived for 150 days in vivo with preservation of the construct shape and size. Furthermore, we identified human blood vessels after 30 and 150 days in vivo, indicating angiogenesis from capillaries. These results showed that LAT has a favourable proteomic signature, contains ASCs, EPCs and blood vessels that survive 3D bioprinting and can potentially facilitate angiogenesis and successful autologous fat grafting in soft-tissue reconstruction.
The dual group of a spherical variety
Creators: name: Knop, Friedrich
name: Schalke, Barbara
Publisher: name: arXiv
Year: 2017
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B22, 14L30, 11F70

description: Let $X$ be a spherical variety for a connected reductive group $G$. Work of Gaitsgory-Nadler strongly suggests that the Langlands dual group $G^\vee$ of $G$ has a subgroup whose Weyl group is the little Weyl group of $X$. Sakellaridis-Venkatesh defined a refined dual group $G^\vee_X$ and verified in many cases that there exists an isogeny $ϕ$ from $G^\vee_X$ to $G^\vee$. In this paper, we establish the existence of $ϕ$ in full generality. Our approach is purely combinatorial and works (despite the title) for arbitrary $G$-varieties.
description: v1: 30 pages; v2: 30 pages, Lemma 10.4 (pertaining to Galois group actions) has been fixed, v3: 31 pages, revised according to referee's report