cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of electromechanical coupling on the strain in AlGaN/GaN heterojunction field effect transistors
Creators: name: Jogai, B.
name: Albrecht, J. D.
name: Pan, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The strain in AlGaN/GaN heterojunction field-effect transistors (HFETs) is examined theoretically in the context of the fully-coupled equation of state for piezoelectric materials. Using a simple analytical model, it is shown that, in the absence of a two-dimensional electron gas (2DEG), the out-of-plane strain obtained without electromechanical coupling is in error by about 30% for an Al fraction of 0.3. This result has consequences for the calculation of quantities that depend directly on the strain tensor. These quantities include the eigenstates and electrostatic potential in AlGaN/GaN heterostructures. It is shown that for an HFET, the electromechanical coupling is screened by the 2DEG. Results for the electromechanical model, including the 2DEG, indicate that the standard (decoupled) strain model is a reasonable approximation for HFET calculataions. The analytical results are supported by a self-consistent Schrödinger-Poisson calculation that includes the fully-coupled equation of state together with the charge-balance equation.
description: 6 figures, revtex
Monte Carlo Modeling of Spin FETs Controlled by Spin-Orbit Interaction
Creators: name: Shen, Min
name: Saikin, Semion
name: Cheng, Ming-C.
name: Privman, Vladimir
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A method for Monte Carlo simulation of 2D spin-polarized electron transport in III-V semiconductor heterojunction FETs is presented. In the simulation, the dynamics of the electrons in coordinate and momentum space is treated semiclassically. The density matrix description of the spin is incorporated in the Monte Carlo method to account for the spin polarization dynamics. The spin-orbit interaction in the spin FET leads to both coherent evolution and dephasing of the electron spin polarization. Spin-independent scattering mechanisms, including optical phonons, acoustic phonons and ionized impurities, are implemented in the simulation. The electric field is determined self-consistently from the charge distribution resulting from the electron motion. Description of the Monte Carlo scheme is given and simulation results are reported for temperatures in the range 77-300 K.
description: 18 pages, 7 figures
Phase Space Analysis of the Dynamics on a Potential Energy Surface with an Entrance Channel and Two Potential Wells
Creators: name: Katsanikas, M.
name: García-Garrido, V. J.
name: Agaoglou, M.
name: Wiggins, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 70H12, 37N99, 70K44, 70H05, 70H07, 34C45, 34C37

description: In this paper we unveil the geometrical template of phase space structures that governs transport in a Hamiltonian system described by a potential energy surface with an entrance/exit channel and two wells separated by an index-1 saddle. For the analysis of the nonlinear dynamics mechanisms, we apply the method of Lagrangian descriptors, a trajectory-based scalar diagnostic tool that is capable of providing a detailed phase space tomography of the interplay between the invariant manifolds of the system. Our analysis reveals that, the stable and unstable manifolds of two families of unstable periodic orbits (UPOs) that exist in the regions of the wells are responsible for controlling the access to the wells of trajectories that enter the system through the channel. In fact, we demonstrate that the heteroclinic and homoclinic connections that arise in the system between the manifolds of the families of UPOs characterize the branching ratio, a relevant quantity used to measure product distributions in chemical reaction dynamics.
description: 17 pages, 10 figures
Holonomy and projective symmetry in space-times
Creators: name: Hall, G. S.
name: Lonie, D. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is shown using a space-time curvature classification and decomposition that for certain holonomy types of a space-time, proper projective vector fields cannot exist. Existence is confirmed, by example, for the remaining holonomy types. In all except the most general holonomy type, a local uniqueness theorem for proper projective symmetry is established.
description: LaTex2e, 12 pages
Fractal structure of the effective action in (quasi-) planar models with long-range interactions
Creators: name: Gorbar, E. V.
name: Gusynin, V. P.
name: Miransky, V. A.
name: Shovkovy, I. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive the effective potential for composite fields in a class of (quasi-) planar models with long-range interactions. This class of models can be relevant for high temperature superconductors and graphite. The fractal structure of the effective potential is revealed and its physical interpretation is presented. It is argued that the multi-branched fractal structure of the potential reflects the presence of an infinite tower of excitonic bound states that occur as a result of the long-range interactions.
description: 5 pages, REVTeX4, 1 figure
PHENIX Heavy flavor overview
Creators: name: Hachiya, Takashi
Publisher: name: Zenodo
Year: 2021
Subjects: aum20
phenix
heavy flavor
bottom
charm
nuclear
modification
raa
p+p
open charm
au+au
flow
electron
muon
J/Ψ
cnm effects
small systems
forward-rapidity
p+al
p+au
3he+au

description: Talk presented at the RHIC/AGS Annual Users Meeting 2020, heavy flavor workshop
title: CMR in Cardiomyopathies: Does LGE reveals the underlying cause ?
Creators: name: Chhabra, Priyanka
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Ischaemia / Infarction
subject: Inflammation
subject: Infection
subject: Imaging sequences
subject: Contrast agent-intravenous
subject: Computer Applications-Detection, diagnosis
subject: MR-Diffusion/Perfusion
subject: MR-Angiography
subject: MR
subject: Cardiovascular system
subject: Cardiac
subject: Anatomy

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the role of delayed enhancement MR imaging in cardiomyopathies. To demonstrate the imaging features of ischemic and non-ischemic cardiomyopathies at delayed enhancement MR...
Gardner optimal capacity of the diluted Blume-Emery-Griffiths neural network
Creators: name: Bolle', D.
name: Castillo, I. Perez
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The optimal capacity of a diluted Blume-Emery-Griffiths neural network is studied as a function of the pattern activity and the embedding stability using the Gardner entropy approach. Annealed dilution is considered, cutting some of the couplings referring to the ternary patterns themselves and some of the couplings related to the active patterns, both simultaneously (synchronous dilution) or independently (asynchronous dilution). Through the de Almeida-Thouless criterion it is found that the replica-symmetric solution is locally unstable as soon as there is dilution. The distribution of the couplings shows the typical gap with a width depending on the amount of dilution, but this gap persists even in cases where a particular type of coupling plays no role in the learning process.
description: 9 pages Latex, 2 eps figures
title: A Multi-System Pictorial Review of COVID-19 Disease
Creators: name: NANDA, BIPIN
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Infection
subject: Education and training
subject: Acute
subject: Complications
subject: Ultrasound-Colour Doppler
subject: Digital radiography
subject: CT-High Resolution
subject: Respiratory system
subject: Lung
subject: Emergency

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To understand patho-physiology of COVID-19 disease. To demonstrate pulmonary imaging manifestations of COVID-19. To demonstrate imaging findings of the complications of COVID-19 in central nervous system, vascular, renal, hepatic and...
Μελέτη Αποκατάστασης και πρόταση Επανάχρησης του συγκροτήµατος της Νέας Αγοράς στο κέντρο της Θεσσαλονίκης
Creators: name: Κορμπιζέ, Αλκιβιάδης Πατρίς-Μαρσέλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Αποκατάσταση και επανάχρηση
Θεσσαλονίκη
Αγορά
Restoration and reuse
Thessaloniki
Market

description: Η παρούσα μελέτη αφορά στην αποκατάσταση και επανάχρηση του συγκροτήματος που απαρτίζει τη Νέα Αγορά. Ένα συγκρότημα με τυπολογίες χαρακτηριστικές της εποχής της ανοικοδόμησης της πόλης και των αστικών εμπορικών κτισμάτων των αρχών του 20ου αιώνα. Η Θεσσαλονίκη υπήρξε διαχρονικά ένας τόπος συνύπαρξης πολιτισμών και ένα μοναδικό παράδειγμα χωρικών και δημογραφικών μεταλλαγών. Παρά τις μεταλλάξεις, τις καταστροφές και τις βίαιες αλλαγές μιας εποχής που επέβαλε την εθνική ομοιογένεια, στον ιστό της πόλης υπάρχουν πάντα ίχνη ιστορικής μνήμης. Μέσα από τα θραύσματα του κτισμένου περιβάλλοντος μπορεί κανείς να αναγνώσει το σύνολο των δυνάμεων που διαμόρφωσαν την κοινωνικοπολιτική και πολεοδομική ιστορία της Θεσσαλονίκης, και να ανασύρει την ιστορική μνήμη της πιο πολυπολιτισμικής πόλης των Βαλκάνιων. Το συγκρότημα απαρτίζεται από τρία μέρη. Το κτίριο επί της οδού Ερμού, που χτίστηκε το 1925 και ανήκει στα διατηρητέα μνημεία, την στοά, και το κτίριο επί της Βασιλέως Ηρακλείου που χτίστηκαν το 1954. Τα παραπάνω κτίσματα μελετώνται ξεχωριστά και ως σύνολο, και αξιολογούνται με σκοπό να προκύψει μια στρατηγική αποκατάστασης που θα αναδείξει τις ιστορικές και αρχιτεκτονικές τους ποιότητες. Παράλληλα διαμορφώνεται σχέδιο επανάχρησης με στόχο την ουσιαστική αναζωογόνηση των χώρων αλλά και την αξιοποίησή τους ως προς τις ανάγκες της πόλης, πάντα με τρόπο που δεν αντιτίθεται στην λειτουργική, αντιληπτική και κατασκευαστική δομή τους.
description: The following study is about the restoration and the reuse proposal of the “Nea Agora” market complex in the centre of Thessaloniki. A complex with typical typologies of the reconstruction era of the city and the urban commercial buildings of the early 20th century. Thessaloniki has always been a place of coexistence of cultures and a unique example of spatial and demographic changes. Despite the mutations, the catastrophes and the violent changes of an era that imposed national homogeneity, there are always traces of historical memory in the fabric of the city. Through the fragments of the built environment one can read all the forces that shaped the socio-political and urban history of Thessaloniki, and retrieve the historical memory of the most multicultural city in the Balkans. The complex consists of three parts. The building on Ermou Street, built in 1925 (preserved monument), the covered gallery and the building on Vassileos Herakliou built in 1954. These parts- buildings are studied separately and as a whole, and are evaluated in order to lead to a restoration strategy that will highlight their historical and architectural qualities. At the same time, a reuse plan is formed with the aim of revitalizing the spaces but also their utilization in relation to the needs of the city, always in a way that does not oppose their functional, perceptual and construction structure.
Mode stability for the Teukolsky equation on extremal and subextremal Kerr spacetimes
Creators: name: da Costa, Rita Teixeira
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove that there are no exponentially growing modes nor modes on the real axis for the Teukolsky equation on Kerr black hole spacetimes, both in the extremal and subextremal case. We also give a quantitative refinement of mode stability. As an immediate application, we show that the transmission and reflection coefficients of the scattering problem are bounded, independently of the specific angular momentum of the black hole, in any compact set of real frequencies excluding zero frequency and the superradiant threshold. While in the subextremal setting these results were known previously, the extremal case is more involved and has remained an open problem. Ours are the first results outside axisymmetry and could serve as a preliminary step towards understanding boundedness, scattering and decay properties of general solutions to the Teukolsky equation on extremal Kerr black holes.
description: 71 pages, 3 figures
What is a globular cluster? An observational perspective
Creators: name: Gratton, Raffaele
name: Bragaglia, Angela
name: Carretta, Eugenio
name: D'Orazi, Valentina
name: Lucatello, Sara
name: Sollima, Antonio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular clusters are large and dense agglomerate of stars. At variance with smaller clusters of stars, they exhibit signs of some chemical evolution. At least for this reason, they are intermediate between open clusters and massive objects such as nuclear clusters or compact galaxies. While some facts are well established, the increasing amount of observational data are revealing a complexity that has so far defied the attempts to interpret the whole data set in a simple scenario. We review this topic focusing on the main observational features of clusters in the Milky Way and its satellites. We find that most of the observational facts related to the chemical evolution in globular clusters are described as being primarily a function of the initial mass of the clusters, tuned by further dependence on the metallicity - that mainly affects specific aspects of the nucleosynthesis processes involved - and on the environment, that likely determines the possibility of indepenedent chemical evolution of the fragments or satellites, where the clusters form. We review the impact of multiple populations on different regions of the colour-magnitude diagram and underline the constraints related to the observed abundances of lithium, to the cluster dynamics, and to the frequency of binaries in stars of different chemical composition. We then re-consider the issues related to the mass budget and the relation between globular cluster and field stars. Any successful model of globular cluster formation should explain these facts.
description: 136 pages, 28 figures
Sagittarius Tidal Debris 90 kpc from the Galactic Center
Creators: name: Newberg, Heidi Jo
name: Yanny, Brian
name: Grebel, Eva K.
name: Hennessy, Greg
name: Ivezic, Zeljko
name: Martinez-Delgado, David
name: Odenkirchen, Michael
name: Rix, Hans-Walter
name: Brinkmann, Jon
name: Lamb, Don Q.
name: Schneider, Donald P.
name: York, Donald G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new overdensity of A-colored stars in distant parts of the Milky Way's stellar halo, at a dereddened SDSS magnitude of g_0 = 20.3, is presented. Identification of associated variable RR Lyrae candidates supports the claim that these are blue horizontal branch stars. The inferred distance of these stars from the Galactic center is 90 kpc, assuming the absolute magnitude of these stars is M_g_0 = 0.7 and that the Sun is 8.5 kpc from the Galactic center. The new tidal debris is within 10 kpc of same plane as other confirmed tidal debris from the disruption of the Sagittarius dwarf galaxy, and could be associated with the trailing tidal arm. Distances to the Sagittarius stream estimated from M stars are about 13% smaller than our inferred distances. The tidal debris has a width of at least 10 degrees, and is traced for more than 20 degrees across the sky. The globular cluster NGC 2419 is located within the detected tidal debris, and may also have once been associated with the Sagittarius dwarf galaxy.
description: 4 figures, ApJL in press
Auditory perception & biofeedback for /ɹ/ (Preston et al., 2020)
Creators: name: Preston, Jonathan L.
name: Hitchcock, Elaine R.
name: Leece, Megan C.
Publisher: name: ASHA journals
Year: 2020
Subjects: subject: 170204 Linguistic Processes (incl. Speech Production and Comprehension)
subject: FOS: Psychology
subject: 200404 Laboratory Phonetics and Speech Science
subject: FOS: Languages and literature

description: Purpose: This study evaluated whether outcomes from treatment, which includes ultrasound visual feedback (UVF), would be more or less effective when combined with auditory perception training for children with residual /ɹ/ errors.Method: Children ages 8–16 years with /ɹ/ distortions participated in speech therapy that included real-time UVF of the tongue. Thirty-eight participants were randomized to speech therapy conditions that included a primary focus on articulation using UVF or a condition that included auditory perceptual training plus UVF (incorporating category goodness judgments and self-monitoring). Generalization of /ɹ/ production accuracy to untrained words was assessed before and after 14 hr of therapy. Additionally, the role of auditory perceptual acuity was explored using a synthetic /ɹ/–/w/ continuum.Results: There was no difference between the treatment groups in rate of improvement of /ɹ/ accuracy (increase of 34% for each group; p = .95, ηp2 = .00). However, pretreatment auditory acuity was associated with treatment progress in both groups, with finer perceptual acuity corresponding to greater progress (p = .015, ηp2 = .182).Conclusion: Similar gains in speech sound accuracy can be made with treatment that includes UVF with or without auditory perceptual training. Fine-grained perceptual acuity may be a prognostic indicator with treatment.
Supplemental Material S1. Individual performance data.
Supplemental Material S2. Correlation matrix for pretreatment variables and posttreatment /ɹ/ accuracy (N = 38).
Preston, J. L., Hitchcock, E. R., & Leece, M. C. (2020). Auditory perception and ultrasound biofeedback treatment outcomes for children with residual /ɹ/ distortions: A randomized controlled trial. Journal of Speech, Language, and Hearing Research. Advance online publication. https://doi.org/10.1044/2019_JSLHR-19-00060
Association of menopausal symptoms with metabolic profile: a mixed-effects model analysis of a large cohort of post-menopausal women
Creators: name: Κοπανός, Στυλιανός Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Σακχαρώδης Διαβήτης
Εμμηνόπαυση
Μεταβολικοί παράγοντες
Diabetes mellitus
Menopause
Metabolic profile

description: The Greene Climacteric Scale provides a quantification of menopausal symptoms in an easy and concise way. It can be used to assess changes in symptoms, focusing on four main areas: psychological (items 1 - 11), physical (items 12 - 18), vasomotor (items 19, 20) and sexual (item 21). The National and Kapodistrian University of Athens has constructed a large cohort of post-menopausal women (6.000 women, with more than 12.000 visits) complete with history, physical examination and laboratory parameters. The present MSc thesis is using data from this cohort aiming to explore the association of menopausal symptoms with lifestyle (smoking, physical exercise, diet) and metabolic parameters, [body mass index (BMI), waist-to-hip ratio (WHR), homeostatic model assessment (HOMA), glycosylated hemoglobin (HbA1c), lipid profile]. Specifically, a mixed-effects model analysis will be applied to search for: • An association between menopausal symptoms’ age at onset, type and intensity to modifiable lifestyle habits (smoking, physical exercise, diet). • An association between menopausal symptoms’ age at onset, type and intensity to somatometric and laboratory metabolic parameters.
description: Η εμμηνοπαυσιακή κλίμακα Greene ποσοτικοποιεί και προσδιορίζει τα συμπτώματα εμμηνόπαυσης με έναν απλό και συνεκτικό τρόπο. Επίσης, δύναται να χρησιμοποιηθεί για την αξιολόγηση μεταβολών των συμπτωμάτων, εστιάζοντας σε τέσσερις κύριους τομείς: ψυχολογικά (αντικείμενα 1-11), (ψυχο)σωματικά (αντικείμενα 12-18), αγγειοκινητικά (αντικείμενα 19, 20) και σεξουαλικά (αντικείμενο 21). Το Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών έχει διαμορφώσει μια μεγάλη μελέτη κοόρτης μετεμμηνοπαυσικών γυναικών (6.000 γυναίκες, με περισσότερες από 12.000 επισκέψεις), συνοδεία του ιατρικού τους ιστορικού, ευρημάτων που προκύπτουν από την κλινική εξέταση, καθώς και εργαστηριακών παραμέτρων. Η παρούσα Πτυχιακή Εργασία χρησιμοποιεί δεδομένα από τη μελέτη αυτή αποσκοπώντας στη διερεύνηση της συσχέτισης των εμμηνοπαυσιακών συμπτωμάτων με τον καθημερινό τρόπο ζωής (κάπνισμα, φυσική άσκηση, διατροφή) αλλά και μεταβολικούς παράγοντες [Δείκτης Μάζας Σώματος (ΔΜΣ), Αναλογία Λεκάνης – Ισχίων, εκτίμηση ομοιοστατικού μοντέλου ινσουλίνης, γλυκοζυλιωμένη αιμοσφαιρίνη, καθώς και λιπιδαιμικό προφίλ. Ειδικότερα, το μοντέλο ανάλυσης δεδομένων που εφαρμόζεται, εξετάζει τα ακόλουθα: • Τη συσχέτιση εμμηνοπαυσιακών συμπτωμάτων με την ηλικία έναρξης της εμμηνόπαυσης, το είδος και την ένταση των εκδηλώσεων καθώς και τροποποιήσιμες καθημερινές συνήθειες (κάπνισμα, φυσική άσκηση, διατροφή). • Τη συσχέτιση εμμηνοπαυσιακών συμπτωμάτων με την ηλικία έναρξης της εμμηνόπαυσης, το είδος και την ένταση των εκδηλώσεων καθώς και σωματομετρικά χαρακτηριστικά και εργαστηριακά αποτελέσματα.
Σχολεία Δεύτερης Ευκαιρίας Φυλακών και η Παιδαγωγική της Απελευθέρωσης
Creators: name: Γαϊτσίδης, Παναγιώτης Ιορδάνη
Publisher: name: Aristotle University of Thessaloniki
Year: 2021
Subjects: Κοινωνικός αποκλεισμός ιδρυματοποίηση απελευθερωτικός διάλογος
Ιδρυματοποίηση
Απελευθερωτικός διάλογος
Social exclusion
Institutionalization
Liberating dialogue

description: Η παρούσα εργασία επιχειρεί να αναζητήσει και να εντοπίσει τους όρους και τον βαθμό εφαρμογής των αρχών της Παιδαγωγικής της Απελευθέρωσης στα πλαίσια της λειτουργίας των Σχολείων Δεύτερης Ευκαιρίας εντός των καταστημάτων κράτησης. Επιπλέον, επιχειρεί να αναλύσει το βαθμό προβληματισμού και κριτικής συνειδητοποίησης, όπως επίσης και της πολιτικής συγκρότησης και κοινωνικής χειραφέτησης των κρατούμενων/μαθητών στα πλαίσια της σχολικής εκπαίδευσης τους, σε συνθήκες κράτησης. Παράλληλα, θα ερευνηθεί η καθημερινότητα του θεσμού του σχολείου στα καταστήματα κράτησης, ο τρόπος δόμησης του προγράμματος σπουδών, των μεθόδων διδασκαλίας που προτιμώνται και της γενικότερης λειτουργίας του. Τα ερευνητικά δεδομένα έχουν συλλεχθεί έπειτα από μια σειρά ημι-δομημένων συνεντεύξεων, που πραγματοποιήθηκαν σε εκπαιδευτικούς που εργάζονται σε Σχολεία Δεύτερης Ευκαιρίας Φυλακών. Τα συμπεράσματα της έρευνας δείχνουν ότι υπάρχει έλλειψη της χρήσης της παιδαγωγικής της απελευθέρωσης στα συγκεκριμένα σχολεία, λόγω του δύσκολου θεσμού της φυλακής, αλλά και της ίδιας της εκπαίδευσης των φυλακών που δείχνει να επιζητά την ισορροπία μεταξύ των δύο θεσμών (του σχολείου και της φυλακής).
description: The present work attempts to search and locate the conditions and the degree of application of the principles of the Pedagogy of Liberation in the context of the operation of the Second Chance Schools within the detention facilities. In addition, it attempts to analyze the degree of reflection and critical awareness, as well as the political composition and social emancipation of prisoners / students in the context of their school education, in detention conditions. At the same time, the daily life of the school institution in the detention facilities, the way of building the curriculum, the preferred teaching methods and its general operation will be investigated. The research data was collected after a series of semi-structured interviews conducted with teachers working in Second Chance Prison Schools. The findings of the research show that there is a lack of use of its pedagogical release in these schools, due to the difficult institution of prison, but also the prison education itself which seems to seek a balance between the two institutions (school and prison).
Foreign direct investment in the African food and agriculture sector: trends, determinants and impacts
Creators: name: Husmann, Christine
name: Kubik, Zaneta
name: Husmann, Christine
name: Kubik, Zaneta
Publisher: name: Unknown
Year: 2019
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: Labor and Human Capital
subject: foreign direct investment
subject: food
subject: agriculture
subject: Africa
subject: income
subject: employment

description: In this paper, we seek to answer three research questions: (1) What is the pattern of foreign direct investment (FDI) in the African food and agriculture sector in the last 15 years? (2) What are the drivers of FDI in the African food and agriculture sector? (3) What is the evidence on the impacts of private-sector investments in the African food and agriculture sector on the product and labor markets, with particular focus on income effects? Our analysis shows that a total of $48.737 billion was invested in the African food and agriculture sector by foreign private-sector investors between 2003 and 2017, with a noticeable peak in FDI inflows observed after the 2008/09 agricultural commodities shocks suggesting that international investors want to capitalize on high food prices. The initiatives such as the New Alliance for Food Security and Nutrition and Grow Africa, which aim to create a conducive environment for investment, might have also contributed to the growth of FDI volumes reported over the last years. Our econometric analysis reveals that market potential is one of the main drivers of FDI in food and agriculture sector in Africa. More specifically, population size consistently has a significant impact on sectoral FDI inflows in Africa, irrespective of the model specification. Among the supply-side factors, the size of agricultural land turns out to be an important predictor of FDI inflows. Agglomeration effects are also observed, with a lagged volume of FDI inflows having a very strong impact on the level of current FDI. Finally, infrastructure or institutional quality play an essential role in attracting investment. These findings give support to various strands of literature that we drew upon in the theoretical framework. Uncovering the impacts that private-sector investment has on the population proved not to be straightforward. Even though the literature is relatively abundant, it is flawed with multiple methodological issues that limit its internal and external validity. Despite these caveats, most of the studies reviewed in our paper seem to suggest positive impacts on farm and labor income. The effects on equality and poverty are not clear, as some investment schemes may be biased towards the better-off households. However, wage-employment opportunities generated by private-sector investment seem to benefit the poorest, especially when they target unskilled labor or women. Finally, there is evidence that private-sector investment might act as a driver of technical innovation. However, many research gaps remain.
title: Effect of Virtual fluoroscopic image in patients with emergency endovascular aortic repair
Creators: name: Tanaka, Yoshihiro
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Trauma
subject: Computer Applications-Virtual imaging
subject: MR
subject: CT
subject: Emergency

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Fenestrated endovascular aortic repair (FEVAR) is becoming increasingly common and is now commercially available in the Japan with recent approval of a customized fenestrated device.(Fig.1) With this technological advancement, there is an expected...
Mise en œuvre des Paiements pour Services Environnementaux : Utilités d’un questionnement juridico-économique ?
Implementation of Payments for Environmental Services: Utilities of a legal-economic question?
Creators: name: Michel, Pech
name: Kristell, Jegou
name: Michel, Pech
name: Kristell, Jegou
Publisher: name: Unknown
Year: 2019
Subjects: subject: Environmental Economics and Policy
subject: payments for environmental services (PES)
subject: agri-environment
subject: innovative financing
subject: contract law
subject: environmental economics

description: Facing budgetary restrictions, public environmental policies are turning to innovative schemes that meet objectives of results, a better adequacy of actions in the territories will allow access to new sources of financing, especially private ones. This is reflected at European level by a desire to move towards more contractualisation (CAP 2020). It is in this context that the payments for environmental services (PES) appear in France as an attempt to modernize the agri-environmental policy, aiming at looking for a "fairer" payment for the farmers but also seeking a greater efficiency environmental. At the same time, many innovative financing tools are being developed (crowdfunding platforms, local complementary currencies, etc.) to respond to a growing desire of local actors to become involved in environmental decisions and to reclaim the use of their investments in a more equitable economy. From this observation, we have been able to draw an empirical model of PES implementation based on a concrete case (Breton agribusiness) that works. On the other hand, if contract law allows a simple and flexible implementation of adequate agri-environmental actions, it implies: i) An upward collective logic around a territorial project ii) A match between explicit local supply and demand for environmental services (ES) iii) A regulator to organize the marketing of ES (place of negotiation, communication and information) iv) To assess the compatibility between private and public payments (WTO rules)
Torrenticola amplexa
Creators: name: Pesic, Vladimir
name: Saboori, Alireza
name: Asadi, Mahdieh
name: Vafaei, Reza
name: Sanatgar, Elham
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Torrenticolidae
Torrenticola
Torrenticola amplexa

description: Torrenticola amplexa (Koenike, 1908)
 Material examined: IR106 Kermanshah Province, Sar Pol Kangarar stream in Sar Pol Kangarar village (ca. 47º55´E 34º30´N), 27.06.2005, leg. Pesic & Vafaei (1/1/0).
 Distribution: Palaearctic (new for Iran).
description: Published as part of Pesic, Vladimir, Saboori, Alireza, Asadi, Mahdieh, Vafaei, Reza & Sanatgar, Elham, 2006, Water mites of the genus Torrenticola Piersig, 1896 (Acari, Hydrachnidia, Torrenticolidae) from Iran, with description of two new species, pp. 45-59 in Zootaxa 1133 (1) on page 52, DOI: 10.11646/zootaxa.1133.1.3, http://zenodo.org/record/5057890
Could the black hole singularity be a field singularity?
Creators: name: Domènech, Guillem
name: Naruko, Atsushi
name: Sasaki, Misao
name: Wetterich, Christof
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the wake of interest to find black hole solutions with scalar hair, we investigate the effects of disformal transformations on static spherically symmetric space-times with a non-trivial scalar field. In particular, we study solutions that have a singularity in a given frame, while the action is regular. We ask if there exists a different choice of field variables such that the geometry and the fields are regular. We find that in some cases disformal transformations can remove a singularity from the geometry or introduce a new horizon. This is possible since the Weyl tensor is not invariant under a general disformal transformation. There exists a class of metrics which can be brought to Minkowksi geometry by a disformal transformation, which may be called disformally flat metrics. We investigate three concrete examples from massless scalar fields to Horndeski theory for which the singularity can be removed from the geometry. This might indicate that no physical singularity is present. We also propose a disformal invariant tensor.
Interatomic potentials for atomistic simulations of the Ti-Al system
Creators: name: Zope, Rajendra R.
name: Mishin, Y.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Semi-empirical interatomic potentials have been developed for Al, alpha-Ti, and gamma-TiAl within the embedded atomic method (EAM) by fitting to a large database of experimental as well as ab-initio data. The ab-initio calculations were performed by the linear augmented plane wave (LAPW) method within the density functional theory to obtain the equations of state for a number of crystal structures of the Ti-Al system. Some of the calculated LAPW energies were used for fitting the potentials while others for examining their quality. The potentials correctly predict the equilibrium crystal structures of the phases and accurately reproduce their basic lattice properties. The potentials are applied to calculate the energies of point defects, surfaces, planar faults in the equilibrium structures. Unlike earlier EAM potentials for the Ti-Al system, the proposed potentials provide reasonable description of the lattice thermal expansion, demonstrating their usefulness in the molecular dynamics or Monte Carlo studies at high temperatures. The energy along the tetragonal deformation path (Bain transformation) in gamma-TiAl calculated with the EAM potential is in a fairly good agreement with LAPW calculations. Equilibrium point defect concentrations in gamma-TiAl are studied using the EAM potential. It is found that antisite defects strongly dominate over vacancies at all compositions around stoichiometry, indicating that gamm-TiAl is an antisite disorder compound in agreement with experimental data.
description: 46 pages, 6 figures (Physical Review B, in press)
Threshold singularities in the XXZ- spin chain
Creators: name: Ovchinnikov, A. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We calculate the critical exponents of the threshold singularity for the spectral density of the XXZ- spin chain at zero magnetic field for the lower threshold. We show that the corresponding phase shifts are momentum-independent and coinside with the predictions of the effective mobile impurity Hamiltonian approach. We show that for the eigenstates with the high-energy particle with the momentum $k$ which is much larger than the momenta of the particle-hole excitations the formfactor is not described in the framework of the Luttinger model even in the limit $k<
description: 8 pages
FARE Share Newsletter, Sandy Warley Tribute Issue
Creators: name: Hailu, Getu
name: Meilke, Karl D.
name: Vaccarino, Franco J.
name: Andison, Nancy Brown
name: Deaton, Brady
name: Van Acker, Rene
name: Goddard, Ellen
name: Weersink, Alfons
name: Gordon, Robert
name: Ker, Alan
name: Hailu, Getu
name: Meilke, Karl D.
name: Vaccarino, Franco J.
name: Andison, Nancy Brown
name: Deaton, Brady
name: Van Acker, Rene
name: Goddard, Ellen
name: Weersink, Alfons
name: Gordon, Robert
name: Ker, Alan
Publisher: name: Unknown
Year: 2019
Subjects: Teaching/Communication/Extension/Profession

description: This FARE Share Special Issue is a dedication to the late Dr. Thorald Keith (T.K.) Warley (1930-2018). Known to most as Sandy, his contribution to the University of Guelph spanned decades, including the roles of professor and chair of the Department of Food, Agricultural and Resource Economics (FARE). Praise for Sandy could fill volumes; we’ve included just a sampling of remembrances and reflections from colleagues and friends, including past and present faculty and students. You’ll read about Sandy’s many contributions to their lives, to the University and his extraordinary commitment to the entire agricultural economist community.
title: A simplified approach to Cardiomyopathies on Cardiac MR Imaging
Creators: name: Chhabra, Priyanka
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Ischaemia / Infarction
subject: Inflammation
subject: Infection
subject: Computer Applications-General
subject: Computer Applications-Detection, diagnosis
subject: CAD
subject: MR-Diffusion/Perfusion
subject: MR-Angiography
subject: MR
subject: Cardiovascular system
subject: Cardiac
subject: Anatomy

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the techniques of myocardial MR imaging. To illustrate the MR imaging features of various ischemic and non-ischemic...
Measurement of the Lund jet plane using charged particles in 13 TeV proton-proton collisions with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The prevalence of hadronic jets at the LHC requires that a deep understanding of jet formation and structure is achieved in order to reach the highest levels of experimental and theoretical precision. There have been many measurements of jet substructure at the LHC and previous colliders, but the targeted observables mix physical effects from various origins. Based on a recent proposal to factorize physical effects, this Letter presents a double-differential cross-section measurement of the Lund jet plane using 139 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton-proton collision data collected with the ATLAS detector using jets with transverse momentum above 675 GeV. The measurement uses charged particles to achieve a fine angular resolution and is corrected for acceptance and detector effects. Several parton shower Monte Carlo models are compared with the data. No single model is found to be in agreement with the measured data across the entire plane.
description: 52 pages in total, author list starting page 36, 24 figures, submitted to Phys. Rev. Lett. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2018-57/
title: P.I.N.K. - Prevention Imaging Network Knowledge: The added value of integrated imaging diagnostic techniques vs mammography in early detection of breast cancer (BC).
Creators: name: Montesano, Marta
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Cancer
subject: Screening
subject: Ultrasound-Colour Doppler
subject: Mammography
subject: Breast

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The literature has shown a certain correlation between "diagnostic anticipation and reduction of mortality" above all thanks to the epidemiological evaluation of mammographic screening programs. More recently, numerous authors around the world have...
El caso del municipio de Quart de Poblet (Valencia) transitando hacia un modelo de Ciudad Inteligente y Sostenible
Creators: name: Medina Cobo, J.
name: Hernandez-Carrion, J.R.
Publisher: name: Zenodo
Year: 2020

description: El Ayuntamiento de Quart de Poblet transita hacia un modelo de Ciudad Inteligente y Sostenible, en la línea de los novedosos modelos de innovación urbana de las Smart Cities. Este camino se inició con la preparación de un proyecto para la solicitud de Fondos Europeos para el desarrollo regional, englobado bajo el nombre de “Estrategia para el desarrollo urbano sostenible integrado 2015-2022 (EDUSI) de Quart de Poblet”. Este documento resume y esquematiza el intenso trabajo realizado en el conocimiento de la ciudad a través de un pormenorizado análisis y diagnóstico. En primer lugar, con el conocimiento profundo de la ciudad, de su sistema urbano y sus elementos, analizando a su vez la interacción existente entre los diferentes actores políticos. Incorporando al diagnóstico de Quart de Poblet las distintas perspectivas que le influencian; desde su entorno físico y socioeconómico, la situación demográfica y medioambiental, y, por otro lado, la prospectiva de la gobernanza local y el crecimiento inteligente. Pretendiendo a su vez, detectar los factores de innovación que tiene la población que favorecen poder convertirse en una Ciudad Inteligente y Sostenible, teniendo en cuenta el trabajo avanzado y desarrollado desde la EDUSI de Quart de Poblet. Posteriormente se presenta un esquema del diseño y avance de la estratégica del Plan Director Vivo de Smart City de la población, donde se pretende definir una base de conocimiento y una metodología al alcance de todos los actores implicados, en modo que puedan ser capaces de hacer evolucionar el Plan Director, ajustándose a las variaciones futuras de las necesidades y de los nuevos retos potenciales a afrontar por este municipio.
NuSTAR observations of the unidentified INTEGRAL sources: constraints on the Galactic population of HMXBs
Creators: name: Clavel, Maïca
name: Tomsick, John A.
name: Hare, Jeremy
name: Krivonos, Roman
name: Mori, Kaya
name: Stern, Daniel
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The NuSTAR Legacy program 'Unidentified INTEGRAL sources' targeted faint hard X-ray sources revealed by INTEGRAL in the Galactic plane in order to provide conclusive identification of their nature and insights on the population of faint hard X-ray sources. The NuSTAR and Swift/XRT observations obtained in 2015-2017 contributed to the successful identification of five persistent sources. Here, we report on the spectral and variability analyses which helped to consolidate the classifications of IGR J10447-6027, IGR J16181-5407 and IGR J20569+4940 as active galactic nuclei, and IGR J17402-3656 as an intermediate polar. An optical spectrum of the blazar IGR J20569+4940 is also presented. Combining these results with successful identifications of other such faint and persistent INTEGRAL sources reported in the literature, we investigate possible implications for the population of persistent high mass X-ray binaries (HMXBs) below the identification completion limit of the INTEGRAL survey. The current trend hints at a deficit of persistent HMXBs below $F_{\rm 17-60keV} = 10^{-11}$ erg cm$^{-2}$ s$^{-1}$, but additional efforts dedicated to classifying faint hard X-ray sources are needed before we can draw solid conclusions.
description: 18 pages, 9 figures, accepted for publication in ApJ
title: Cardiac MRI assessment after Tetralogy of Fallot repair: A novel approach
Creators: name: Chhabra, Priyanka
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Tissue characterisation
subject: Haemodynamics / Flow dynamics
subject: Congenital
subject: Contrast agent-intravenous
subject: Computer Applications-General
subject: Computer Applications-Detection, diagnosis
subject: MR-Diffusion/Perfusion
subject: MR-Angiography
subject: MR
subject: Cardiovascular system
subject: Cardiac
subject: Anatomy

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To enlist the common postoperative complications of tetralogy of Fallot. To discuss the techniques and benefits of cardiac MR imaging in the assessment of these complications. To describe and illustrate the imaging features of these complications...
Photoelectron circular dichroism in the multiphoton ionization by short laser pulses: III. Photoionization of fenchone in different regimes
Creators: name: Müller, Anne D.
name: Kutscher, Eric
name: Artemyev, Anton N.
name: Demekhin, Philipp V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Photoelectron circular dichroism (PECD) in different regimes of multiphoton ionization of fenchone is studied theoretically using the time-dependent single center method. In particular, we investigate the chiral response to the one-color multiphoton or strong-field ionization by circularly polarized 400 and 814 nm optical laser pulses or 1850 nm infrared pulse. In addition, the broadband ionization by short coherent circularly polarized 413-1240 nm spanning pulse is considered. Finally, the two-color ionization by the phase-locked 400 and 800 nm pulses, which are linearly polarized in mutually-orthogonal directions, is investigated. The present computational results on the one-color multiphoton ionization of fenchone are in agreement with the available experimental data. For the ionization of fenchone by broadband and bichromatic pulses, the present theoretical study predicts substantial multiphoton PECDs.
description: 5 figures
title: Occupational Burnout and Its Related Factors Among Radiographers
Creators: name: Ribeiro, Luís
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Workforce
subject: Patterns of Care
subject: Occupational / Environmental hazards
subject: Safety
subject: Physiological studies
subject: Health policy and practice
subject: MR
subject: Digital radiography
subject: CT
subject: Radiographers
subject: Professional issues
subject: Management

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Social pressure leads the worker to situations of psychological stress that compromise their quality of life and work. Therefore, there is a need for employing institutions to promote conditions that lead to increased productivity and that, at the...
The Solar Eclipses of the Pharaoh Akhenaten
Creators: name: Khalisi, Emil
Publisher: name: arXiv
Year: 2020
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We suggest an earlier date for the accession of the pharaoh Akhenaten of the New Kingdom in Egypt. His first year of reign would be placed in 1382 BCE. This conjecture is based on the possible witness of three annular eclipses of the sun during his lifetime: in 1399, 1389, and 1378 BCE. They would explain the motive for his worship of the sun that left its mark on later religious communities. Evidence from Akhenaten's era is scarce, though some lateral dependencies can be disentangled on implementing the historical course of the subsequent events.
description: 7 pages, 3 figs, 2 tabs; *overhauled and improved version*