cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Διερεύνηση της προγνωστικότητας έντονης ψυχρής εισβολής με τη χρήση παγκόσμιου αριθμητικού μοντέλου
Creators: name: Καθαρόπουλος, Ιωάννης Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Μετεωρολογια
Ψυχρή Εισβολή
Παγκόσμιο Αριθμητικό Μοντέλο
Meteorology
Cold Intrusion
Global Circulation Model

description: Η μεσοπρόθεσμη και μακροπρόθεσμη πρόβλεψη ακραίων καιρικών φαινομένων, είναι μια συνιστώσα της επιστήμης της Μετεωρολογίας που συνεχώς αναπτύσσεται καθώς οι επιπτώσεις των τελευταίων στις ανθρώπινες δραστηριότητες και στην ίδια την ζωή του ανθρώπου είναι μεγάλες. Αν σε αυτό προστεθεί η κλιματική αλλαγή, που σύμφωνα με πολλές έρευνες ήδη συμβάλει, και θα συμβάλει στην αύξηση των ακραίων καιρικών φαινομένων στον πλανήτη κάποιος εύκολα καταλαβαίνει την ανάγκαιότητα για έγκαιρη πρόγνωση ακραίων και επικίνδυνων συμβάντων. Αξιολογώντας τα παραπάνω αποφασίσαμε να εστιάσουμε την προσοχή μας στην πρόγνωση έντονων ψυχρών εισβολών στην περιοχή των Ανατολικών Βόρειων Ηνωμένων Πολιτειών. Σκοπός της εργασίας είναι να μελετηθεί η ικανότητα ενός παγκόσμιου μοντέλου αριθμητικής πρόγνωσης, να αναπαραστήσει και να προγνώσει ικανοποιητικά μια ψυχρή εισβολή με αρκετά μεγάλο σήμα στην περιοχή που αναφέρθηκε περίπου ένα μήνα πριν το συμβαν (Μεσοπρόθεσμη-Μακροπρόθεσμη πρόγνωση). Για την μελέτη της ευαισθησίας του γεγονότος και του μοντέλου στις θερμοκρασίες θάλασσας, πραγματοποιήθηκαν αρχικά προσομοιώσεις, οι οποίες περιλαμβάνουν διαφορετικά ‘πακέτα’ θερμοκρασιών θάλασσας και στη συνέχεια έλαβε χώρα σύγκριση ανάμεσα στις προσομοιώσεις αλλά και σύγκριση με τα δεδομένα των αναλύσεων για την ποσοτικοποίηση των αποτελεσμάτων. Το μεγαλύτερο μέρος των προσομοιώσεων ήταν ικανό να αναπαραστήσει την ατμοσφαιρική κυκλοφορία στην Βόρεια Αμερική το τελευταίο επταήμερο του Ιανουαρίου.
description: Mid and long range forecast of extreme events is a fast growing discipline of meteorology. This is primarily due to the severe impact of extreme events on human activities and life. Taking into account Climate Change which contributes directly to the intensity and the increase of the number of extreme events, (always according to recent articles and publications), one can understand the importance and the necessity of the early accurate forecast of extremes. After considering the latter, it was decided to focus on the forecast of intense cold intrusions in the area of North East United States The goal of this thesis is to evaluate the ability of a Global Weather Numerical Model (GWRF) to represent and forecast a large scale cold intrusion in the area of North East United States one month prior to the event. For the evaluation of the sensitivity of the model and the event in the Sea Surface Temperatures (SSTs) a set of simulations with different SSTs was performed. They were compared with each other and with reanalysis data in order to quantify the forecasting ability. Most of the simulations were able to reconstruct accurately the atmospheric circulation above North America during the last week of January.
Model for the free-volume distributions of equilibrium fluids
Creators: name: Krekelberg, William P.
name: Ganesan, Venkat
name: Truskett, Thomas M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We introduce and test via molecular simulation a simple model for predicting the manner in which interparticle interactions and thermodynamic conditions impact the single-particle free-volume distributions of equilibrium fluids. The model suggests a scaling relationship for the density-dependent behavior of the hard-sphere system. It also predicts how the second virial coefficients of fluids with short-range attractions affect their free-volume distributions.
description: 7 pages, 5 figures
From Starspots to Stellar Coronal Mass Ejections—Revisiting Empirical Stellar Relations
Creators: name: Herbst, Konstantin
name: Papaioannou, Athanasios
name: Airapetian, Vladimir S.
name: Atri, Dimitra
Publisher: name: Zenodo
Year: 2021

description: Upcoming missions, including the James Webb Space Telescope, will soon characterize the atmospheres of terrestrial-type exoplanets in habitable zones around cool K- and M-type stars by searching for atmospheric biosignatures. Recent observations suggest that the ionizing radiation and particle environment from active cool planet hosts may be detrimental to exoplanetary habitability. Since no direct information on the radiation field is available, empirical relations between signatures of stellar activity, including the sizes and magnetic fields of starspots, are often used. Here, we revisit the empirical relation between the starspot size and the effective stellar temperature and evaluate its impact on estimates of stellar flare energies, coronal mass ejections, and fluxes of the associated stellar energetic particle events.
Finite temperature properties of QCD with two flavors and three, four and five colors
Creators: name: DeGrand, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: I present a numerical study of the crossover between the low temperature chirally broken phase and the high temperature chirally restored phase in $SU(N_c)$ gauge theory with $N_c=3-5$ colors and $N_f=2$ degenerate fermion flavors. Fermion masses span a range of intermediate values (represented by the squared ratio of pseudoscalar to vector meson masses $(m_{PS}/m_V)^2\sim 0.25$ to 0.63). Observables include the temperature dependent chiral condensate and screening masses. At each fermion mass these quantities show nearly identical temperature dependence across $N_c$.
description: published version, small changes from v.1, 24 pages, 9 figures
Additional file 3: of Elevated neoantigen levels in tumors with somatic mutations in the HLA-A, HLA-B, HLA-C and B2M genes
Creators: name: Castro, Andrea
name: Kivilcim Ozturk
name: Pyke, Rachel
name: Xian, Su
name: Zanetti, Maurizio
name: Carter, Hannah
Publisher: name: Figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Plant Biology
subject: Computational Biology

description: Figure S3. Increased mutation burden associated with mutations in HLA, related to Fig. 3. (A and B) Boxplots showing total number of nonsynonymous mutations for (A) MSI and MSS and (B) MSS only TCGA patients with or without HLA mutations for additional tissue types not shown in Figs.Â 3b, or d. Patients are divided by tumor type. Only the tumor types containing at least 5 mutated patients and that have not been reported in Fig. 3 are shown. P-values are adjusted for multiple comparisons using the Benjaminiâ Hochberg procedure. (PDF 435 kb)
Origin and Resummation of Threshold Logarithms in the Lattice QCD Calculations of PDFs
Creators: name: Gao, Xiang
name: Lee, Kyle
name: Mukherjee, Swagato
name: Shugert, Charles
name: Zhao, Yong
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Many present lattice QCD approaches to calculate the parton distribution functions (PDFs) rely on a factorization formula or effective theory expansion of certain Euclidean matrix elements in boosted hadron states. In the quasi- and pseudo-PDF methods, the matching coefficient in the factorization or expansion formula includes large logarithms near the threshold, which arise from the subtle interplay of collinear and soft divergences of an underlying 3D momentum distribution. We use the standard prescription to resum such logarithms in the Mellin-moment space at next-to-leading logarithmic accuracy, which also accounts for the DGLAP evolution, and we show that it can suppress the PDF at large $x$. Unlike the deep inelastic scattering and Drell-Yan cross sections, the resummation formula is away from the Landau pole. We then apply our formulation to reanalyze the recent lattice results for the pion valence PDF, and find that within the current data sensitivity, the effect of threshold resummation is marginal for the accessible moments and the PDF at large $x$.
description: 15 pages, 7 figures
Additional file 4: of Elevated neoantigen levels in tumors with somatic mutations in the HLA-A, HLA-B, HLA-C and B2M genes
Creators: name: Castro, Andrea
name: Kivilcim Ozturk
name: Pyke, Rachel
name: Xian, Su
name: Zanetti, Maurizio
name: Carter, Hannah
Publisher: name: Figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Plant Biology
subject: Computational Biology

description: Figure S4. Tumor stage analysis for patients with B2M and HLA mutations. Percentage distribution of tumor stages for the patients with or without B2M and HLA mutations. (PDF 343 kb)
The Effects of Insulin-Induced Moderate Hypoglycemia on Hippocampal Plasticity
Creators: name: Frankel, Joseph
name: Gunther, Kelley
name: Matthews, Lex
name: Plakkot, Siddarth
name: Ser, Eileen
name: Shapiro, Melanie
name: Weng, Peter
name: Wilkin, Danielle
name: Xu, Linhan
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Hypoglycemia
behavioral changes
anxiety
depression
Gemstone Team PANCREAS

description: Self-regulation of blood glucose in diabetics via insulin administration introduces the risk of hypoglycemia. Previous studies have shown hypoglycemia damages the dentate gyrus, an area of the hippocampus associated with anxiety- and depressive-like behavior. To date, only depressive-like behaviors have been observed following moderate hypoglycemia. This study sought to examine whether acute moderate hypoglycemia induces both behaviors due to high clinical comorbidity. One episode of moderate hypoglycemia was induced in a male Sprague-Dawley rat. Twenty-four hours later, hippocampal function was evaluated via the elevated plus maze and the forced swim test to assess anxiety-like and depressive-like behavior. Results, though not statistically significant, suggested that acute moderate hypoglycemia may increase anxiety- and depressive-like behavior. These findings may elucidate hypoglycemia-related behavioral changes.
MAXIPOL: Cosmic Microwave Background Polarimetry Using a Rotating Half-Wave Plate
Creators: name: Johnson, B. R.
name: Collins, J.
name: Abroe, M. E.
name: Ade, P. A. R.
name: Bock, J.
name: Borrill, J.
name: Boscaleri, A.
name: de Bernardis, P.
name: Hanany, S.
name: Jaffe, A. H.
name: Jones, T.
name: Lee, A. T.
name: Levinson, L.
name: Matsumura, T.
name: Rabii, B.
name: Renbarger, T.
name: Richards, P. L.
name: Smoot, G. F.
name: Stompor, R.
name: Tran, H. T.
name: Winant, C. D.
name: Wu, J. H. P.
name: Zuntz, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss MAXIPOL, a bolometric balloon-borne experiment designed to measure the E-mode polarization of the cosmic microwave background radiation (CMB). MAXIPOL is the first bolometric CMB experiment to observe the sky using rapid polarization modulation. To build MAXIPOL, the CMB temperature anisotropy experiment MAXIMA was retrofitted with a rotating half-wave plate and a stationary analyzer. We describe the instrument, the observations, the calibration and the reduction of data collected with twelve polarimeters operating at 140 GHz and with a FWHM beam size of 10 arcmin. We present maps of the Q and U Stokes parameters of an 8 deg^2 region of the sky near the star Beta Ursae Minoris. The power spectra computed from these maps give weak evidence for an EE signal. The maximum-likelihood amplitude of l(l+1)C^{EE}_{l}/(2 pi) is 55_{-45}^{+51} uK^2 (68%), and the likelihood function is asymmetric and skewed positive such that with a uniform prior the probability that the amplitude is positive is 96%. This result is consistent with the expected concordance LCDM amplitude of 14 uK^2. The maximum likelihood amplitudes for l(l+1)C^{BB}_{l}/(2 pi) and $\ell(\ell+1)C^{EB}_{\ell}/2π$ are -31_{-19}^{+31} and 18_{-34}^{+27} uK^2 (68%), respectively, which are consistent with zero. All of the results are for one bin in the range 151 < l < 693. Tests revealed no residual systematic errors in the time or map domain. A comprehensive discussion of the analysis of the data is presented in a companion paper.
description: 19 pages, 11 figures, 2 tables, submitted to ApJ
A Kinect Based Indoor Navigation System for the Blind
Creators: name: Belov, Alexander
name: Fu, Guodong
name: Gururam, Janani
name: Hackenburg, Francis
name: Osman, Yael
name: Purtilo, John
name: Rossomando, Nicholas
name: Sawyer, Ryan
name: Shih, Ryan
name: True, Emily
name: Varghese, Agnes
name: Zhang, Yolanda
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Blindness
Microsoft Kinect
Navigation tools
Gemstone Team NAVIGATE

description: Team NAVIGATE aims to create a robust, portable navigational aid for the
blind. Our prototype uses depth data from the Microsoft Kinect to perform realtime
obstacle avoidance in unfamiliar indoor environments. The device augments
the white cane by performing two signi cant functions: detecting overhanging objects
and identifying stairs. Based on interviews with blind individuals, we found a
combined audio and haptic feedback system best for communicating environmental
information. Our prototype uses vibration motors to indicate the presence of an
obstacle and an auditory command to alert the user to stairs ahead. Through multiple
trials with sighted and blind participants, the device was successful in detecting
overhanging objects and approaching stairs. The device increased user competency
and adaptability across all trials.
Superconductivity in the Nb2SnC compound
Creators: name: Bortolozo, A. D.
name: SantAnna, O. H.
name: da Luz, M. S.
name: Santos, C. A. M. dos
name: Pereira, A. S.
name: Trentin, K. S.
name: Machado, A. J. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Nb2SnC is a member of the large family of lamellar materials that crystallize in the hexagonal structure with space group P63/mmc which are isomorphs with Cr2AlC, also named H-phase. In spite of the great number of compounds which belong to this family, the superconductivity has been reported only for two cases: Mo2GaC and Nb2SC. In this work we show that superconductivity can be observed in Nb2SnC depending on the synthesis method used. The quality of the superconductor is strongly dependent of the synthesis method and the optimal results were reached for samples synthesized at 2.5 GPa and 523 +/- 50oC. This sample showed a critical temperature close to 7.8K, revealed from magnetization and transport measurement, the highest critical temperature reported up to now for an H-phase.
description: paper with 12 pages and 4 figures
MOESM6 of Heterologous overexpression, purification and functional analysis of plant cellulose synthase from green bamboo
Creators: name: Hsuan-Yu Huang
name: Cheng, Yi-Sheng
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: Developmental Biology

description: Additional file 6:Â Figure S6. Negative staining of BoCesA synthesized product after cellulase treatment in TEM.
Crisi e innovazione istituzionale. Le riforme dei governi locali in Italia e Spagna
Creators: name: Bolgherini, Silvia
Publisher: name: Università degli Studi di Firenze
Year: 2015

description: The outbreak of the global crisis in 2007-2008 marked a critical juncture both internationally and domestically for most western countries. Economic crises often have an impact on institutional structures and in fact the current crisis prompted national governments to introduce reforms. Italy and Spain have both been dramatically affected by the global crisis, although with different intensity, features and reactions. Both countries introduces territorial reforms due to deeply modify the institutional structure of the relevant local government. In this contribution it will be argued that territorial reforms were already on the national agendas and the global crisis accelerated their (re)start; that Italy and Spain chose different path for reform although starting from the same exogenous context and having the same final aim; finally, that some crucial aspects concerning inter-institutional relations, which should have been addressed by the reforms, risk to remain unattended also after the reforms.
description: SocietàMutamentoPolitica, Vol 6, N° 11 (2015): Per comparare la crisi europea oggi: scenari  di mutamento sociale e politico in Italia e in Spagna
Integral Equation for Scattering of Light by a Strong Magnetostatic Field in Vacuum
Creators: name: Lakhtakia, Akhlesh
name: Mackay, Tom G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: When a strong magnetostatic field is present, vacuum effectively appears as a linear, uniaxial, dielectric-magnetic medium for small-magnitude optical fields. The availability of the frequency-domain dyadic Green function when the magnetostatic field is spatially uniform facilitates the formulation of an integral equation for the scattering of an optical field by a spatially varying magnetostatic field in vacuum. This integral equation can be numerically treated by using the method of moments as well as the coupled dipole method. Furthermore, the principle underlying the strong-property-fluctuation theory allows the homogenization of a spatially varying magnetostatic field in the context of light scattering.
Non-destructive detection of large molecules without mass limitation
Creators: name: Poindron, Adrien
name: Pedregosa-Gutierrez, Jofre
name: Jouvet, Christophe
name: Knoop, Martina
name: Champenois, Caroline
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The problem for molecular identification knows many solutions which include mass spectrometers whose mass sensitivity depends on the performance of the detector involved. The purpose of this article is to show by means of molecular dynamics simulations, how a laser-cooled ion cloud, confined in a linear radio-frequency trap, can reach the ultimate sensitivity providing the detection of individual charged heavy molecular ions. In our simulations, we model the laser-cooled Ca + ions as two-level atoms, confined thanks to a set of constant and time oscillating electrical fields. A singly-charged molecular ion with a mass of 10 6 amu is propelled through the ion cloud. The induced change in the fluorescence rate of the lather is used as the detection signal. We show that this signal is due to a significant temperature variation triggered by the Coulombian repulsion and amplified by the radio-frequency heating induced by the trap itself. We identify the optimum initial energy for the molecular ion to be detected and furthermore, we characterize the performance of the detector for a large range of confinement voltages.
Συναισθηματική Υπερφαγία Αντρών και Γυναικών: Ο Ρόλος Διαχείρισης Αρνητικών και Θετικών Βιωμάτων
Creators: name: Κωνσταντίνου, Υβόνη Μαρίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: υπερφαγία, συναισθήματα
στρατηγικές αντιμετώπισης
βιωματική αποφυγή
binge eating, emotions
coping strategies
experiential avoidance

description: Η συναισθηματική υπερφαγία εμφανίζεται εξίσου και στα δύο φύλα όλων των ηλικιών, αν και λίγες είναι οι έρευνες αυτές που περιλαμβάνουν τον ανδρικό πληθυσμό ή άτομα μεγάλης ηλικίας. Στην παρούσα έρευνα, σκοπός ήταν η διερεύνηση της σχέσης αρνητικών αλλά και θετικών βιωμάτων με την υπερφαγία σε 211 γυναίκες και 85 άντρες διαφορετικών ηλικιών (18-73), από Ελλάδα και Κύπρο. Οι συμμετέχοντες κλίθηκαν να συμπληρώσουν ορισμένα ερωτηματολόγια σε ηλεκτρονική μορφή, τα οποία αφορούσαν την υπερφαγία, τις στρατηγικές αντιμετώπισης και τη βιωματική αποφυγή. Τα αποτελέσματα έδειξαν πως σε αντίθεση με αυτό που αναμενόταν, η σχέση βιωμάτων (θετικών ή αρνητικών) και υπερφαγίας εντοπίζεται μόνο στις γυναίκες. Το σημαντικό εύρημα που βρέθηκε για τις γυναίκες, δηλαδή η θετική σχέση αρνητικών βιωμάτων και υπερφαγίας, παρατηρείται επίσης σε άτομα όλων των ηλικιών, ανεξαρτήτως φύλου. Η υπερφαγία δεν βρέθηκε να προβλέπεται ως συνάρτηση της αλληλεπίδρασης των στρατηγικών αντιμετώπισης (συναισθηματική υποστήριξη, ιδεομηρυκασμός, άρνηση και χιούμορ) με το φύλο. Η βιωματική αποφυγή φαίνεται πως προβλέπει θετικά την υπερφαγία και αυτή η σχέση δε φαίνεται να είναι συνάρτηση του επιπέδου των αρνητικών βιωμάτων. Στο τέλος της εργασίας συζητούνται οι περιορισμοί της έρευνας αλλά και πιθανές κλινικές εφαρμογές και προτάσεις για μελλοντική έρευνα
description: Emotional eating occurs equally in both sexes of all ages, although few of these studies include the male population or older people. The aim of the present study was to investigate the relationship between negative and positive experiences with overeating in 211 women and 85 men of different ages (18-73), from Greece and Cyprus. The participants were asked to fill in a number of online questionnaires, which concerned emotional and binge eating, coping strategies and experiential avoidance. The important finding for women, which is a positive relationship between negative experiences and overeating, also has been found to people of all ages, regardless of gender. Unlike what was expected, the results showed that the relationship between (positive or negative) experiences and binge eating is only found in women. Binge eating has not been predicted as a function of the interaction of strategies (emotional support, venting, denial, and humor) with gender. Experiential avoidance seems to positively predict binge eating and this relationship does not seem to be a function of the level of negative experiences. Limitations of the study or clinical implications of these findings and avenues for future research are discussed at the end of the work
La crisi dell’identità sociale tra pregiudizi, xenofobie  e razzismi. L’inclusione dell’altro in tempo di crisi in Italia e Spagna
Creators: name: Bello, Valeria
Publisher: name: Università degli Studi di Firenze
Year: 2015

description: By focusing on the sociological literature investigating the effects of processes of identity constructions on the formation of prejudice, racism and xenophobia, this article compares attitudes towards immigrants in Spain and Italy for the years before and after the recent socio-economic crisis in Europe. It highlights how different ways of framing its own and others identity, produce for people different results in terms of attitudes towards outsiders. In particular, from the statistical analysis of European Social Survey data, it is clear that the Italian society is more prejudiced towards migrants than the Spanish one, and mainly shows a cultural or ethnic type of racism, while in Spain people have become more inclusive in a decade time. However, the findings also illustrate that, during the years of the socio-economic crisis, the figures of extremist individuals have increased in both countries. Despite this, Spain has shown an important rise of inclusive attitudes towards immigrants; while, in Italy, if renewed and more inclusive immigration policies are formulated, the situation could improve.
description: SocietàMutamentoPolitica, Vol 6, N° 11 (2015): Per comparare la crisi europea oggi: scenari  di mutamento sociale e politico in Italia e in Spagna
A star cluster at the edge of the Galaxy
Creators: name: Brand, J.
name: Wouterloot, J. G. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study stars and molecular gas in the direction of IRAS06145+1455 (WB89-789) through NIR (JHK), molecular line-, and dust continuum observations. The kinematic distance of the associated molecular cloud is 11.9 kpc. With a galactocentric distance of about 20.2 kpc, this object is at the edge of the (molecular) disk of the Galaxy. The near-IR data show the presence of an (embedded) cluster of about 60 stars, with a radius ca. 1.3 pc and an average stellar surface density of ca. 12 pc^{-2}. We find at least 14 stars with NIR-excess, 3 of which are possibly Class I objects. The cluster is embedded in a 1000 Mo molecular/dust core, from which a molecular outflow originates. The temperature of most of the outflowing gas is < 40 K, and the total mass of the swept-up material is < 10 Mo. Near the center of the flow, indications of much higher temperatures are found, probably due to shocks. A spectrum of one of the probable cluster members shows a tentative likeness to that of a K3III-star (with an age of at least 20 Myr). If correct, this would confirm the kinematic distance. This cluster is the furthest one from the Galactic center yet detected. The combination of old and recent activity implies that star formation has been going on for at least 20 Myr, which is difficult to understand considering the location of this object, where external triggers are either absent or weak, compared to the inner Galaxy. This suggests that once star formation is occurring, later generations of stars may form through the effect of the first generation of stars on the (remnants of) the original molecular cloud.
description: Accepted for publication in A&A; 14 pages, 12 figures, 4 tables
Mutamento sociale e mutamento politico nella Spagna e nell’Italia di oggi. Intervista a Salvador Giner de San Julián
Creators: name: Raffini, Luca
Publisher: name: Università degli Studi di Firenze
Year: 2015

description: SocietàMutamentoPolitica, Vol 6, N° 11 (2015): Per comparare la crisi europea oggi: scenari  di mutamento sociale e politico in Italia e in Spagna
A Direct Upper Limit on the Density of Cosmological Dust from the Absence of an X-ray Scattering Halo around the z=4.3 QSO 1508+5714
Creators: name: Petric, A. O.
name: Telis, G. A.
name: Paerels, F.
name: Helfand, D. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of a search for an intergalactic X-ray dust scattering halo in a deep observation of the bright, high-redshift quasar QSO 1508+5714 with the Chandra X-ray Observatory. We do not detect such a halo. Our result implies an upper limit on the density of diffuse, large-grained intergalactic dust of Omega_ dust < 2 x 10^-6, assuming a characteristic grain size of 1micron. The result demonstrates the sensitivity of this technique for detecting very small amounts of intergalactic dust which are very hard to detect otherwise. This will allow us to put important constraints on systematic effects induced by extinction on the interpretation of the SN Ia Hubble Diagram, as well as on the amount and properties of cosmological dust being expelled into the intergalactic medium at early z~2 times.
description: 14 pages, 2 figures. to appear in ApJ, vol. 651, Nov. 2006
L’attentato a Charlie Hebdo: una riflessione sociologica
Creators: name: Spreafico, Andrea
Publisher: name: Università degli Studi di Firenze
Year: 2015

description: When we witness events as those occurred in Paris on 7-9 January 2015 and in Copenhagen on 14-15 February 2015 (mentioning two among the most striking cases in a list which could include many other similar events spread all over Europe and over the years), in which young second- or third-generation immigrants often turn out to be involved, we have the wish and need to attempt to identify, at least preliminarily, hypothetical, possible explanatory factors, whether facilitating or simply intervening. As this essay aims at illustrating, those factors have to do with both the cohesion of the European societies and what is happening on the international scene. The article will only deal with the first aspect, which sometimes, however, is connected with the Isis’s enticement. In the light of the identified interrelated elements, the essay ends with a short reflection on the freedom of expression, which has been more than symbolically challenged by the above mentioned attacks.
description: SocietàMutamentoPolitica, Vol 6, N° 11 (2015): Per comparare la crisi europea oggi: scenari  di mutamento sociale e politico in Italia e in Spagna
Analytic curves in algebraic varieties over number fields
Creators: name: Bost, Jean-Benoît
name: Chambert-Loir, Antoine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14G40, 31A15, 14G22

description: We establish algebraicity criteria for formal germs of curves in algebraic varieties over number fields and apply them to derive a rationality criterion for formal germs of functions, which extends the classical rationality theorems of Borel-Dwork and Pólya-Bertrandias valid over the projective line to arbitrary algebraic curves over a number field. The formulation and the proof of these criteria involve some basic notions in Arakelov geometry, combined with complex and rigid analytic geometry (notably, potential theory over complex and $p$-adic curves). We also discuss geometric analogues, pertaining to the algebraic geometry of projective surfaces, of these arithmetic criteria.
description: 55 pages. To appear in "Algebra, Arithmetic, and Geometry: In Honor of Y.i. Manin", Y. Tschinkel & Yu. Manin editors, Birkh\"auser, 2009
Ο συμψηφισμός κατά τον ΑΚ
Creators: name: Τσιαγκάλης, Παναγιώτης Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Συμψηφισμός
Ένσταση
Τριπρόσωπες σχέσεις
Set off
Objection
Three-persons relations

description: Σκοπός της διπλωματικής εργασίας ήταν η ανάλυση του συμψηφισμού, όπως ρυθμίζεται στον ΑΚ με έμφαση στις τριπρόσωπες σχέσεις. Παρουσιάσαμε τις προϋποθέσεις του μονομερούς συμψηφισμού, καθώς και περιπτώσεις απαιτήσεων ανεπίδεκτων συμψηφισμού. Στη συνέχεια, εξετάσαμε την άσκηση του δικαιώματος συμψηφισμού, τον τρόπο προβολής του στο πλαίσιο δίκης, καθώς και τα αποτελέσματα αυτού. Τέλος, ασχοληθήκαμε με ζητήματα συμψηφισμού στο πλαίσιο τριπρόσωπων σχέσεων του ΑΚ, όπως είναι η εκχώρηση απαιτήσεων και η εγγύηση
description: The aim of the present thesis was the analysis of the set off, as regulated in the Greek Civil Code, with emphasis on the three-persons relations. We presented the requirements of the unilateral set off and the cases of claims, which are not susceptible to set off. Then we examined the exercise of the right to set off, the way of projecting it into a trial and its’ legal effects. Finally, we examined aspects of the set off in the context of three-persons relations, such as the assignment of receivables and the guarantee
A falling magnetic monopole as a holographic local quench
Creators: name: Zenoni, Nicolo
name: Auzzi, Roberto
name: Caggioli, Stefania
name: Martinelli, Maria
name: Nardelli, Giuseppe
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An analytic static monopole solution is found in global AdS$_4$, in the limit of small backreaction. This solution is mapped in Poincaré patch to a falling monopole configuration, which is dual to a local quench triggered by the injection of a condensate. Choosing boundary conditions which are dual to a time-independent Hamiltonian, we find the same functional form of the energy-momentum tensor as the one of a quench dual to a falling black hole. On the contrary, the details of the spread of entanglement entropy are very different from the falling black hole case where the quench induces always a higher entropy compared to the vacuum, i.e. $ΔS >0$. In the propagation of entanglement entropy for the monopole quench, there is instead a competition between a negative contribution to $ΔS$ due to the scalar condensate and a positive one carried by the freely propagating quasiparticles generated by the energy injection.
description: 32 pages, 12 figures; v2: journal version, minor improvements
Commissioning of low particle flux for proton beams at MedAustron
Creators: name: Ulrich-Pur, Felix
name: Adler, Laurids
name: Bergauer, Thomas
name: Burker, Alexander
name: De Franco, Andrea
name: Guidoboni, Greta
name: Hirtl, Albert
name: Irmler, Christian
name: Kaser, Stefanie
name: Nowak, Sebastian
name: Pitters, Florian
name: Pivi, Mauro
name: Prokopovich, Dale
name: Schmitzer, Claus
name: Wastl, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: MedAustron is a synchrotron-based particle therapy centre located in Wiener Neustadt, Austria. It features three irradiation rooms for particle therapy, where proton beams with energies up to 252.7 MeV and carbon ions of up to 402.8 MeV/u are available for cancer treatment. In addition to the treatment rooms, MedAustron features a unique beamline exclusively for non-clinical research (NCR). This research beamline is also commissioned for proton energies up to 800 MeV, while available carbon ion energies correspond to the ones available in the clinical treatment rooms. Based on the requirements for particle therapy, all irradiation rooms offer particle rates of up to 10^9 particles/s for protons and 10^7 particles/s for carbon ions. However, for research purposes, lower particle fluxes are required and were therefore commissioned for the NCR beamline. Three particle flux settings with particle rates ranging from ~2.4x10^3 particles/s to ~5.2x10^6 particles/s were established for seven proton energies below 252.7 MeV. In addition to the particle rate, the spot sizes and beam energies were measured for these settings. Furthermore, three low flux settings for 800 MeV protons with particle rates ranging from ~2x10^3 particles/s to ~1.3x10^6 particles/s were commissioned. Since the commissioned low flux settings are in a regime well below the limits of the available standard beam diagnostics, setting up the beam under these new operational conditions entirely relied on the use of external detectors. Furthermore, a beam position measurement based alignment without using the standard beam profile monitors was performed for 800 MeV protons.
description: Preprint submitted to NIM A (first revision)
La partecipazione politica dei migranti. Dall’esclusione alle diverse forme di mobilitazione
Creators: name: Lotto, Marta
Publisher: name: Università degli Studi di Firenze
Year: 2015

description: The aim of this contribution is to develop several lines of investigations on the subject of political participation of migrants, namely: the possible heuristic value deriving from the understanding of migrants as a category, the connection between political participation and exclusion and the plurality of ways in which migrants actively express themselves.
description: SocietàMutamentoPolitica, Vol 6, N° 11 (2015): Per comparare la crisi europea oggi: scenari  di mutamento sociale e politico in Italia e in Spagna
The Z' reconsidered
Creators: name: Ferroglia, A.
name: Lorca, A.
name: van der Bij, J. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the extension of the standard model with an arbitrary number of U(1) gauge fields coupled to baryon-minus-lepton number and/or hypercharge. Under the assumption that A^b_FB from the LEP1 experiment is an unlucky fluctuation, we find moderate evidence for the presence of such fields in the precision electroweak data. A relatively large range of the Higgs boson mass is allowed. We discuss the phenomenology of the extra U(1) fields.
Detecting level crossings without looking at the spectrum
Creators: name: Bhattacharya, M.
name: Raman, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In many physical systems it is important to be aware of the crossings and avoided crossings which occur when eigenvalues of a physical observable are varied using an external parameter. We have discovered a powerful algebraic method of finding such crossings via a mapping to the problem of locating the roots of a polynomial in that parameter. We demonstrate our method on atoms and molecules in a magnetic field, where it has implications in the search for Feshbach resonances. In the atomic case our method allows us to point out a new class of invariants of the Breit-Rabi Hamiltonian of magnetic resonance. In the case of molecules, it enables us to find curve crossings with practically no knowledge of the corresponding Born-Oppenheimer potentials.
description: 4 pages, new title, no figures, accepted by Phys. Rev. Lett
B0s Decays and B Hadron Leptonic Decays
Creators: name: Van Kooten, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Branching fractions of B^0s decays into specific CP eigenstates are presented, and these and other results are combined in world averages to evaluate implications on the width difference between mass or CP eigenstates, ΔΓ_s. New results on purely leptonic decays of B hadrons from the Tevatron and B factories are also presented.
description: 9 pages, 11 figures, to appear in the Proceedings of Flavor Physics and CP Violation Workshop 2006 (FPCP 2006), add references, minor text changes, boldmath
Heavy Meson Molecules in Effective Field Theory
Creators: name: AlFiky, Mohammad T.
name: Gabbiani, Fabrizio
name: Petrov, Alexey A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the implications from the possibility that the recently observed state X(3872) is a meson-antimeson molecule. We write an effective Lagrangian consistent with the heavy-quark and chiral symmetries needed to describe X(3872). We explore the consequences of the assumption that X(3872) is a molecular bound state of D^{*0} and anti-D^0 mesons for the existence of bound states in the D^0-anti-D^0 and D^{*0}-anti-D^{*0}.
description: 7 pages, 1 figure, presented at 7th Workshop on Continuous Advances in QCD, Minneapolis, Minnesota, 11-14 May 2006
pQCD Calculations of Heavy Quark and J/psi Production
Creators: name: Cacciari, Matteo
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the present status of theoretical predictions for both closed (J/psi) and open heavy quark production in high energy collisions, and their comparisons to experimental data.
description: 8 pages, invited talk given at Quark Matter 2006, Shanghai, China, 14-20 November 2006
Complex orientations of real algebraic surfaces
Creators: name: Viro, Oleg
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14P25; 14F25; 14F45

description: We study natural additional structures on real algebraic surfaces with trivial first homology mod 2 of the complexification. If the set of real points realizes the zero of the second homology mod 2 of the complexification, then the set of real points is equipped with a pair of opposite orientations and a Spin structure. If the set of real points realizes the same homology class as the complexification of a real curve on the surface, then the complement of the curve in set of real points is equipped a pair of opposite orientations, which do not extend across the curve, and the whole set of real points is equipped with a Pin^- structure. These constructions are similar to the complex orientations of real algebraic curves dividing their complexifications and generalize to high dimensions.
Effects of hydrogen bonding on supercooled liquid dynamics and the implications for supercooled water
Creators: name: Mattsson, Johan
name: Bergman, Rikard
name: Jacobsson, Per
name: Börjesson, Lars
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The supercooled state of bulk water is largely hidden by unavoidable crystallization, which creates an experimentally inaccessible temperature regime - a 'no man's land'. We address this and circumvent the crystallization problem by systematically studying the supercooled dynamics of hydrogen bonded oligomeric liquids (glycols), where water corresponds to the chain-ends alone. This novel approach permits a 'dilution of water' by altering the hydrogen bond concentration via variations in chain length. We observe a dynamic crossover in the temperature dependence of the structural relaxation time for all glycols, consistent with the common behavior of most supercooled liquids. We find that the crossover becomes more pronounced for increasing hydrogen bond concentrations, which leads to the prediction of a marked dynamic transition for water within 'no man's land' at T~220 K. Interestingly, the predicted transition thus takes place at a temperature where a so called 'strong-fragile' transition has previously been suggested. Our results, however, imply that the dynamic transition of supercooled water is analogous to that commonly observed in supercooled liquids. Moreover, we find support also for the existence of a secondary relaxation of water with behavior analogous to that of the secondary relaxation observed for the glycols.
description: 20 pages, 5 figures; corrected typos, title changed, small clarifying text changes, two labels removed from Fig. 2b
Non-centrosymmetric Superconductivity and Antiferromagnetic Order: Microscopic discussion of CePt$_3$Si
Creators: name: Yanase, Youichi
name: Sigrist, Manfred
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The influence of antiferromagnetic order on the superconductivity in the non-centrosymmetric heavy fermion compound CePt$_3$Si and related materials is discussed. Based on our RPA analysis for the extended Hubbard model two phases could be stabilized by a spin fluctuation induced pairing, with either dominantly p-wave or d-wave symmetry. The antiferromagnetic order plays an essential role for the low-energy physics, in particular, for the appearance of line nodes in the gap and the enhancement of spin susceptibility below $T_{\rm c}$. Various properties and possible phase diagrams under pressure are analyzed. The present experimental situation suggests that the p-wave phase is most likely realized in CePt$_3$Si.
description: To appear in J. Phys. Soc. Jpn. Vol.76 (2007) No.4
Massive scalar field perturbation on Kerr black holes in dynamical Chern-Simons gravity
Creators: name: Zhang, Shao-Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study massive scalar field perturbation on Kerr black holes in dynamical Chern-Simons gravity by performing a $(2+1)$-dimensional simulation. Object pictures of the wave dynamics in time domain are obtained. The tachyonic instability is found to always occur for any nonzero black hole spin and any scalar field mass as long as the coupling constant exceeds a critical value. The presence of the mass term suppresses or even quenches the instability. The quantitative dependence of the onset of the tachyonic instability on the coupling constant, the scalar field mass and the black hole spin is given numerically.
description: v1:14 pages, 4 figures;v2: minor modification, refs added. v3: minor modification, more refs, match published version
The rotating molecular core and precessing outflow of the young stellar object Barnard 1c
Creators: name: Matthews, B. C.
name: Hogerheijde, M. R.
name: Jorgensen, J. K.
name: Bergin, E. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the structure of the core surrounding the recently identified deeply embedded young stellar object Barnard 1c which has an unusual polarization pattern as traced in submillimeter dust emission. Barnard 1c lies within the Perseus molecular cloud at a distance of 250 pc. It is a deeply embedded core of 2.4 solar masses (Kirk et al.) and a luminosity of 4 +/- 2 solar luminosities. Observations of CO, 13CO, C18O, HCO+ and N2H+ were obtained with the BIMA array, together with the continuum at 3.3 mm and 2.7 mm. Single-dish measurements of N2H+ and HCO+ with FCRAO reveal the larger scale emission in these lines, The CO and HCO+ emission traces the outflow, which coincides in detail with the S-shaped jet recently found in Spitzer IRAC imaging. The N2H+ emission, which anticorrelates spatially with the C18O emission, originates from a rotating envelope with effective radius ~ 2400 AU and mass 2.1 - 2.9 solar masses. N2H+ emission is absent from a 600 AU diameter region around the young star. The remaining N2H+ emission may lie in a coherent torus of dense material. With its outflow and rotating envelope, B1c closely resembles the previously studied object L483-mm, and we conclude that it is a protostar in an early stage of evolution. We hypothesize that heating by the outflow and star has desorbed CO from grains which has destroyed N2H+ in the inner region and surmise that the presence of grains without ice mantles in this warm inner region can explain the unusual polarization signature from B1c.
description: 17 pages, 17 figures (9 colour). Accepted to The Astrophysical Journal. For higher resolution images, see http://astrowww.phys.uvic.ca/~brenda/preprints.html
Zeolite-Loaded Alginate-Chitosan Hydrogel Beads as a Topical Hemostat
Creators: name: Bayomi, May
name: Choi, Yoon Sun
name: Christodoulides, Katerina
name: Fathi, Parinaz
name: Ghodasara, Anjali
name: Knazik, Jocelyn
name: Langan, Kristen
name: Miller, Benjamin
name: Sikorski, Michael
name: Thaker, Hemi
name: Titcomb, Michael
name: Wonodi, Omasiri
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: Hydrogels
Hemorrhage
Coagulation
Gemstone Team CLOT

description: Hemorrhage is the leading cause of preventable death after a traumatic injury.
Commercial hemostatic agents exist, but have various disadvantages including high
cost, short shelf-lives, or secondary tissue damage. Polymer hydrogels provide a
promising platform for the use of both biological and mechanical mechanisms to
accelerate natural hemostasis and control hemorrhage. The goal of this work was to
develop hydrogel particles composed of chitosan and alginate and loaded with zeolite
in order to stop blood loss by targeting multiple hemostatic mechanisms. Several
ii
particle compositions were synthesized and then characterized through swelling
studies, particle sizing, Scanning Electron Microscopy (SEM), and Fourier Transform
Infrared Spectroscopy (FTIR). The in vitro interactions of the particles were
evaluated through coagulation, degradation, platelet aggregation, and cytotoxicity
studies. The results indicate that 4% alginate, 1% chitosan, 4% zeolite-loaded
hydrogel beads can significantly reduce time to coagulation and increase platelet
aggregation in vitro. Future research can look into the efficacy of these particles in
vivo.