cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Plasmonic Microbubble Dynamics in Binary Liquids
Creators: name: Li, Xiaolai
name: Wang, Yuliang
name: Zeng, Binglin
name: Detert, Marvin
name: Prosperetti, Andrea
name: Zandvliet, Harold J. W.
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The growth of surface plasmonic microbubbles in binary water/ethanol solutions is experimentally studied. The microbubbles are generated by illuminating a gold nanoparticle array with a continuous wave laser. Plasmonic bubbles exhibit ethanol concentration-dependent behaviors. For low ethanol concentrations (f_e) of < 67.5%, bubbles do not exist at the solid-liquid interface. For high f_e values of >80%, the bubbles behave as in pure ethanol. Only in an intermediate window of 67.5% < f_e < 80% do we find sessile plasmonic bubbles with a highly nontrivial temporal evolution, in which as a function of time three phases can be discerned. (1) In the first phase, the microbubbles grow, while wiggling. (2) As soon as the wiggling stops, the microbubbles enter the second phase in which they suddenly shrink, followed by (3) a steady reentrant growth phase. Our experiments reveal that the sudden shrinkage of the microbubbles in the second regime is caused by a depinning event of the three phase contact line. We systematically vary the ethanol concentration, laser power, and laser spot size to unravel water recondensation as the underlying mechanism of the sudden bubble shrinkage in phase 2.
description: 7 pages,4 figures
Kaluza-Klein Holography
Creators: name: Skenderis, Kostas
name: Taylor, Marika
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a holographic map between asymptotically AdS_5 x S^5 solutions of 10d supergravity and vacuum expectation values of gauge invariant operators of the dual QFT. The ingredients that enter in the construction are (i) gauge invariant variables so that the KK reduction is independent of any choice of gauge fixing; (ii) the non-linear KK reduction map from 10 to 5 dimensions (constructed perturbatively in the number of fields); (iii) application of holographic renormalization. A non-trivial role in the last step is played by extremal couplings. This map allows one to reliably compute vevs of operators dual to any KK fields. As an application we consider a Coulomb branch solution and compute the first two non-trivial vevs, involving operators of dimension 2 and 4, and reproduce the field theory result, in agreement with non-renormalization theorems. This constitutes the first quantitative test of the gravity/gauge theory duality away from the conformal point involving a vev of an operator dual to a KK field (which is not one of the gauged supergravity fields).
description: 47 pages, v2: minor improvements, version to appear in JHEP
Relationships between the Stellar, Gaseous, and Star Formation Disks in LITTLE THINGS Dwarf Irregular Galaxies: Indirect Evidence for Substantial Fractions of Dark Molecular Gas
Creators: name: Hunter, Deidre A.
name: Elmegreen, Bruce G.
name: Goldberger, Esther
name: Taylor, Hannah
name: Ermakov, Anton I.
name: Herrmann, Kimberly A.
name: Oh, Se-Heon
name: Malko, Bradley
name: Barandi, Brian
name: Jundt, Ryan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The stellar, gaseous and young stellar disks in the LITTLE THINGS sample of nearby dIrrs are fitted with functions to search for correlations between the parameters. We find that the HI radial profiles are generally flatter in the center and fall faster in the outer regions than the V-band profiles, while young stars are more centrally concentrated, especially if the HI is more centrally flat. This pattern suggests that the HI is turning into molecules in the center and the molecular clouds are forming stars and FUV. A model that assumes the molecular surface density is proportional to the total gas surface density to a power of 1.5 or 2, in analogy with the Kennicutt-Schmidt relation, reproduces the relationship between the ratio of the visible to the HI scale length and the HI Sersic index. The molecular fraction is estimated as a function of radius for each galaxy by converting the FUV to a molecular surface density using conventional calibrations. The average molecular fraction inside 3R_D is 23+/-17%. However, the break in the stellar surface brightness profile has no unified tracer related to star formation.
description: In press in the Astronomical Journal
Strictly correlated electrons in density functional theory: A general formulation with applications to spherical densities
Creators: name: Seidl, Michael
name: Gori-Giorgi, Paola
name: Savin, Andreas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We reformulate the strong-interaction limit of electronic density functional theory in terms of a classical problem with a degenerate minimum. This allows us to clarify many aspects of this limit, and to write a general solution, which is explicitly calculated for spherical densities. We then compare our results with previous approximate solutions and discuss the implications for density functional theory.
description: 12 pages, 9 figures. To appear in Phys. Rev. A
Η προβληματική της σιωπηρής δράσης της διοίκησης υπό το πρίσμα των σιωπηρών θετικών και των σιωπηρών απορριπτικών πράξεων:
Creators: name: Σκούρα, Σουλτάνα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: σιωπηρή θετική πράξη
σιωπηρή απορριπτική πράξη
διοικητικός
implicit positive administrative act
tacit rejection administrative act
administrative

description: Στην παρούσα μεταπτυχιακή εργασία ασχοληθήκαμε με τη σιωπηρή δράση της διοίκησης, υπό το πρίσμα των σιωπηρών θετικών και των σιωπηρών απορριπτικών πράξεων. Επιχειρήσαμε μία κατηγοριοποίηση των πράξεων αυτού του είδους και στη συνέχεια αναλύσαμε τη διαπλοκή του εν λόγω θεσμού με γενικές αρχές του διοικητικού δικαίου και το Σύνταγμα. Εδικότερα εξετάσαμε τη συμβατότητα του θεσμού με την αρχή της νομιμότητας και της αποτελεσματικότητας της διοίκησης, του δικαιώματος δικαστικής προστασίας, καθώς και των αρχών της διάκρισης των εξουσιών, της αναλογικότητας και της επικουρικότητας. Επιπλέον, αναλύσαμε τη δικαστική προσβολή των πράξεων αυτών, τόσο σε ουσιαστικό, όσο και σε δικονομικό επίπεδο. Επίσης, παρουσιάσαμε τις αντίστοιχες διατάξεις του ενωσιακού δικαίου, που προβλέπουν τέτοιες σιωπηρές πράξεις και τις συνέπειες της δικαστικής προσβολής τους. Τέλος, παραθέσαμε συνοπτικά τα πορίσματα και συμπεράσματα της παρούσας εργασίας.
description: The present postgraduate thesis is a presentation of the tacit administrative competence, in the light of positive implicit and implied rejection administrative acts. We attempted to categorize the acts of such nature and subsequently analyzed how this phenomenon may interweave with general principles of the administrative law and the constitution. More specifically, we examined whether the implicit administrative act complies with the principles of legality and effectiveness, the right to judicial protection, as well as the principles of separation of powers, proportionality and subsidiarity. Furthermore, we presented the form of judicial review of these implicit acts, in terms of both substantive and procedural provisions. In addition, we presented the respective EU legislation, that provides the conclusion of tacit administrative acts, as well as the aim of the judicial remedies provided against them. Finally, we summarized the basic conclusions and findings of the present thesis.
Quantum hydrodynamics of spin winding
Creators: name: Tserkovnyak, Yaroslav
name: Zou, Ji
name: Kim, Se Kwon
name: Takei, So
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An easy-plane spin winding in a quantum spin chain can be treated as a transport quantity, which propagates along the chain but has a finite lifetime due to phase slips. In a hydrodynamic formulation for the winding dynamics, the quantum continuity equation acquires a source term due to the transverse vorticity flow. The latter reflects the phase slips and generally compromises the global conservation law. A linear-response formalism for the nonlocal winding transport then reduces to a Kubo response for the winding flow along the spin chain, in conjunction with the parasitic vorticity flow transverse to it. One-dimensional topological hydrodynamics can be recovered when the vorticity flow is asymptotically small. Starting with a microscopic spin-chain formulation, we focus on the asymptotic behavior of the winding transport based on the renormalized sine-Gordon equation, incorporating phase slips as well as Gilbert damping. A generic electrical device is proposed to manifest this physics. We thus suggest winding conductivity as a tangible concept that can characterize low-energy dynamics in a broad class of quantum magnets.
description: 9 pages, 2 figures
Nanoflare Diagnostics from Magnetohydrodynamic Heating Profiles
Creators: name: Knizhnik, Kalman J.
name: Barnes, Will T.
name: Reep, Jeffrey W.
name: Uritsky, Vadim M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The nanoflare paradigm of coronal heating has proven extremely promising for explaining the presence of hot, multi-million degree loops in the solar corona. In this paradigm, localized heating events supply enough energy to heat the solar atmosphere to its observed temperatures. Rigorously modeling this process, however, has proven difficult, since it requires an accurate treatment of both the magnetic field dynamics and reconnection as well as the plasma's response to magnetic perturbations. In this paper, we combine fully 3D magnetohydrodynamic (MHD) simulations of coronal active region plasma driven by photospheric motions with spatially-averaged, time-dependent hydrodynamic (HD) modeling of coronal loops to obtain physically motivated observables that can be quantitatively compared with observational measurements of active region cores. We take the behavior of reconnected field lines from the MHD simulation and use them to populate the HD model to obtain the thermodynamic evolution of the plasma and subsequently the emission measure distribution. We find the that the photospheric driving of the MHD model produces only very low-frequency nanoflare heating which cannot account for the full range of active region core observations as measured by the low-temperature emission measure slope. Additionally, we calculate the spatial and temporal distributions of field lines exhibiting collective behavior, and argue that loops occur due to random energization occurring on clusters of adjacent field lines.
Noncommutativity Approach to Supersymmetry on the Lattice: SUSY Quantum Mechanics and an Inconsistency
Creators: name: Bruckmann, Falk
name: de Kok, Mark
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is argued that the noncommutativity approach to fully supersymmetric field theories on the lattice suffers from an inconsistency. Supersymmetric quantum mechanics is worked out in this formalism and the inconsistency is shown both in general and explicitly for that system, as well as for the Abelian super BF model.
description: 8 pages, typo's corrected, conclusions unchanged
Spectral Broadening and Ultrafast Dynamics of a Nitrogen-Vacancy Center Ensemble in Diamond
Creators: name: Liu, Albert
name: Cundiff, Steven T.
name: Almeida, Diogo B.
name: Ulbricht, Ronald
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Many applications of nitrogen-vacancy (NV) centers in diamond crucially rely on a spectrally narrow and stable optical zero-phonon line transition. Though many impressive proof-of-principle experiments have been demonstrated, much work remains in engineering NV centers with spectral properties that are sufficiently robust for practical implementation. To elucidate the mechanisms underlying their interactions with the environment, we apply multi-dimensional coherent spectroscopy to an NV center ensemble in bulk diamond at cryogenic temperatures. Our spectra reveal thermal dephasing due to quasi-localized vibrational modes as well as ultrafast spectral diffusion on the picosecond timescale. The intrinsic, ensemble-averaged homogeneous linewidth is found to be in the tens of GHz range by extrapolating to zero temperature. We also observe a temperature-dependent Stark splitting of the excited state manifold, relevant to NV sensing protocols.
Experience of significant change for psychodrama audience members
Creators: name: Buell, Shelley Gail
Publisher: name: University of British Columbia
Year: 2009

description: Psychodrama is an action focused group therapy that works with psychological conflict through enacting the problem. Based on the theory of J.L. Moreno, this therapy is comprised of an extensive repertoire of therapeutic techniques. Audience members play a crucial role in the integration phase following an enactment and Moreno believed that therapeutic benefits occurred for both protagonists and audience members. Although the audience is one of Moreno's five instruments, almost no research has focused exclusively on the experience of audience members. This study explored the experience of significant change for six psychodrama audience members. Transcripts of interviews were analyzed employing Giorgi's (1985) existential-phenomenological method resulting in the emergence of five themes regarding the experience of change, three themes regarding the way in which audience members made meaning of their experience, and one theme each regarding evidence of change in daily life, perception of the way in which the experience evolves across several workshops, and the identification of factors influencing change. Results indicated that the experience was intense, cathartic, and a source of significant change and personal learning. Implications regarding audiences in general and psychodrama audiences specifically are discussed, and suggestions for further research are provided.
Βιβλιογραφία των αυτοτελών εκδόσεων Ηλία Βενέζη (1928-2010):
Creators: name: Καρανίκα, Δέσποινα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Βενέζης, Ηλίας
Βιβλιογραφία
Νεοελληνική Πεζογραφία
Venezis, Elias
Bibliography
Modern Greek Prose

description: Στην παρούσα εργασία, που τιτλοφορείται «Βιβλιογραφία των αυτοτελών εκδόσεων Ηλία Βενέζη (1928-2010)», επιχειρείται η βιβλιογραφική καταγραφή των έργων του Βενέζη που κυκλοφόρησαν σε αυτοτελείς εκδόσεις. Συγκεκριμένα, παρουσιάζονται με χρονολογική σειρά τα εικοσιπέντε αυτοτελή έργα του και καταγράφονται όλες τους οι εκδόσεις, οι ανατυπώσεις και οι μεταφράσεις, από την πρώτη επίσημη εμφάνιση του συγγραφέα (Ο Μανώλης Λέκας κι άλλα διηγήματα, 1928), μέχρι και την τελευταία, τη μεταθανάτια έκδοση των διηγημάτων του (Το καΐκι του Θησείου, 2006). Επίσης, παρατίθενται οι κρίσεις για κάθε έργο, δηλαδή τα ποικίλα κριτικά κείμενα (βιβλιοκρισίες, σχεδιάσματα κ.ά.) που δημοσιεύτηκαν στον ελληνικό περιοδικό και ημερήσιο τύπο, στο αμέσως επόμενο χρονικό διάστημα μετά την έκδοση του βιβλίου. Στο εισαγωγικό μέρος της μελέτης, παρατίθενται δεδομένα που αφορούν την εκδοτική πορεία του έργου του συγγραφέα. Κυρίως όμως, μέσω της συγκριτικής συστηματοποίησης και ανάλυσης του κριτικού υλικού, εξετάζεται και σχολιάζεται η άμεση κριτική υποδοχή του έργου του Βενέζη στον ελληνικό χώρο. Έτσι, διαφαίνεται το κριτικό ενδιαφέρον που προήλθε από διαφορετικούς ιδεολογικούς χώρους για το κάθε έργο χωριστά, αποτυπώνονται τα σημεία στα οποία στάθηκε η κριτική, και εν γένει ανασυντίθεται η συνολική κριτική εικόνα. Επίσης, επιχειρείται η συνοπτική περιγραφή των σπουδών γύρω από το έργο του Βενέζη και επισημαίνονται τα κενά που εντοπίστηκαν σε αυτές.
description: In the present thesis, which is entitled “Bibliography of the separate editions of Elias Venezis (1928-2010)”, a bibliographical registration of the works of Venezis, which were circulated in separate editions, is attempted. Specifically, his twenty five separate works are presented in chronological order, as well as, all their editions, reprints and translations, from the author’s first formal appearance (Ο Μανώλης Λέκας κι άλλα διηγήματα, 1928), until the last, posthumous edition of his short-stories (Το καΐκι του Θησείου, 2006). Also, reviews for each work are cited, i.e. various critical texts (book reviews, extensive critical notes etc.), which were published in the Greek daily and periodical press, in the proximate period after each book’s publication. In the introduction, some facts regarding the editorial appeal of the author’s works are presented, as well as, a commentary description of the works’ immediate critical reception in Greece. So, through the comparative systematization and analysis of the critical material, Venezis’s immediate critical reception in Greece is examined and annotated. The critical interest that originated from various ideological spheres for each work individually is revealed, the main points are imprinted, and generally the overall critical image is reconstructed. Also, a concise description of studies of the work of Venezis is attempted, and the absences in them are indicated.
Edge State Magnetism of Single Layer Graphene Nanostructures
Creators: name: Bhowmick, Somnath
name: Shenoy, Vijay B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study edge state magnetism in graphene nanostructures using a mean field theory of the Hubbard model. We investigate how the magnetism of the zigzag edges of graphene is affected by the presence of other types of terminating edges and defects. By a detailed study of both regular shapes, such as polygonal nanodots and nanoribbons, and irregular shapes, we conclude that the magnetism in zigzag edges is very robust. Our calculations show that the zigzag edges that are longer than three to four repeat units are always magnetic, irrespective of other edges, regular or irregular. We, therefore, clearly demonstrate that the edge irregularities and defects of the bounding edges of graphene nanostructures does not destroy the edge state magnetism.
Fannie Mae's National Housing Survey Monthly Home Purchase Sentiment Index (HPSI) and Key Indicators - June, 2019 (a subset of the complete monthly Fannie Mae National Housing Survey)
Creators: name: Foundation, Fannie Mae
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Economy on right/wrong track (1); personal financial situation (1); good/bad time to buy a house (1); good/bad time to sell a house (1); home price changes (3); rental price changes (3); mortgage interest rate changes (1); ability to obtain a home mortgage today (1); current homeownership status (1); renting vs. buying a home in the future (1); concern about unemployment (1); change in income (1).
Η δημοσιονομική πολιτική του Ιωάννη Γ΄ Δούκα Βατάτζη (1222-1254):
Creators: name: Πεταλάς, Στέφανος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Δημοσιονομική
Πολιτκή
Βατάτζης
Fiscal
Policy
Vatatzes

description: Η άλωση της Κωνσταντινούπολης από τους Σταυροφόρους το 1204 προκάλεσε τον κατακερματισμό των βυζαντινών δυνάμεων και τη δημιουργία μικρών ηγεμονιών. Η αυτοκρατορία της Νίκαιας αποδείχτηκε η πιο ικανή να εκπληρώσει το όνειρο της ανακατάληψης της βασιλίδος των πόλεων μετά από 57 χρόνια. Ο Ιωάννης Γ΄ Δούκας Βατάτζης (1222-1254) διαδέχτηκε τον Θεόδωρο Α΄ Λάσκαρη και κατάφερε κατα τη διάρκεια της βασιλείας του να καταστήσει την αυτοκρατορία του μια υπολογίσιμη δύναμη μεγαλώνοντας της κτήσεις της. Βασικά πεδία αυτής της εργασίας είναι η αναφορά στην εκμετάλλευση των πλουτοπαραγωγικών της Νίκαιας, η οργάνωση της οικονομικής διοίκησης που αποτελεί συνέχεια της βυζαντινής, η φορολογική πολιτική του Ιωάννη Βατάτζη, η διαχείριση των δημόσιων εσόδων, τα συνετά οικονομικά μέτρα που πήρε και η νομισματική πολιτική που ακολούθησε. Η δημοσιονομική του πολιτική είναι ένα λαμπρό παράδειγμα της βυζαντινής οικονομίας.
description: The fall of Constantinople by the crusaders in 1204 caused the division of the byzantine forces and the creation of small kingdoms. The Nicean Empire was the most capable of fulfilling the dream to recapture Constantinople after 57 years. John 3rd Doukas Vatatzes (1222-1254) succeeded Theodore 1st Laskaris and managed during his years of kingdom to establish his empire a considerable force by enlarging its territories. Basic fields of this study are the reference to the exploitation of the Nicean natural ressources, the organisation of the economical administration of the Nicean Empire that is characterised by the continuation of the byzantine administration, the tax policy of John Vatatzes, the handling of the public revenues, his circumspect economical measures and his currency policy. His fiscal policy constitutes a brilliant example of the byzantine economy.
A boundary value "reservoir problem" and boundary conditions for multi-moment multifluid simulations of sheaths
Creators: name: Cagas, Petr
name: Hakim, Ammar
name: Srinivasan, Bhuvana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Multifluid simulations of plasma sheaths are increasingly used to model a wide variety of problems in plasma physics ranging from global magnetospheric flows around celestial bodies to plasma-wall interactions in thrusters and fusion devices. For multifluid problems, accurate boundary conditions to model an absorbing wall that resolves a classical sheath remains an open research area. This work justifies the use of vacuum boundary conditions for absorbing walls to show comparable accuracy between a multifluid sheath and lower moments of a continuum-kinetic sheath.
Comparisons of binary black hole merger waveforms
Creators: name: Baker, John G.
name: Campanelli, Manuela
name: Pretorius, Frans
name: Zlochower, Yosef
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This a particularly exciting time for gravitational wave physics. Ground-based gravitational wave detectors are now operating at a sensitivity such that gravitational radiation may soon be directly detected, and recently several groups have independently made significant breakthroughs that have finally enabled numerical relativists to solve the Einstein field equations for coalescing black-hole binaries, a key source of gravitational radiation. The numerical relativity community is now in the position to begin providing simulated merger waveforms for use by the data analysis community, and it is therefore very important that we provide ways to validate the results produced by various numerical approaches. Here, we present a simple comparison of the waveforms produced by two very different, but equally successful approaches--the generalized harmonic gauge and the moving puncture methods. We compare waveforms of equal-mass black hole mergers with minimal or vanishing spins. The results show exceptional agreement for the final burst of radiation, with some differences attributable to small spins on the black holes in one case.
description: Revtex 4, 5 pages. Published version
Network Analysis of Greek Blogs Using a Custom-made Web Crawler:
Creators: name: Αλεξανδράκη, Ξανθή Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: δίκτυο blogs
ανάλυση δικτύου
ειδικά κατασκευασμένος web-crawler
blog network
network analysis
custom web-crawler

description: The emergence and growth of blogging during the last decade has transformed blogs from being simple personal online diaries to websites with high publishing activity that interact in great extent with other blogs. In that sense blogs create a network, called blogosphere, of great interest as a subject for study. Many researches have taken place regarding the analysis of these blog networks, mainly using a limited range of metrics applied each time. The present study explores the Greek blogs network by performing a wide range of network analysis metrics to come to useful conclusions among other things about its structure, the role and importance of individual blogs and the existence of communities. We attempted to use as many metrics as possible, in order to obtain a clear and catholic view of greek blogosphere. The study used fifty greek blogs as a sample for crawling into their web pages to find the existing links using a custom-made web crawler. The results showed a densely connected network with some obviously influential blogs, which interact mainly with less influential blogs. Other important roles of blogs were also examined.
description: Η ιλιγγιώδης ανάπτυξη του blogging κατά τη διάρκεια της τελευταίας δεκαετίας έχει μετατρέψει τα blogs, από απλά προσωπικά ημερολόγια σε ιστοχώρους με μεγάλη δραστηριότητα που αλληλεπιδρούν σε μεγάλο βαθμό με άλλα blogs. Κάτω από αυτές τις συνθήκες, δημιουργείται ένα δίκτυο, η μπλογκόσφαιρα, της οποίας η μελέτη παρουσιάζει ιδιαίτερο επιστημονικό ενδιαφέρον. Πολλές έρευνες έχουν διεξαχθεί προκειμένου να αναλύσουν τo εν λόγω δίκτυo. Οι περισσότερες επικεντρώνονται κάθε φορά στην εφαρμογή ενός περιορισμένου συνόλου μετρικών για την πραγματοποίηση της ανάλυσης. Η παρούσα μελέτη διερευνά το ελληνικό δίκτυο των blogs, εφαρμόζοντας ένα ευρύ φάσμα μετρικών ανάλυσης δικτύου προκειμένου να καταλήξει σε χρήσιμα συμπεράσματα, μεταξύ άλλων, για τη δομή του δικτύου, το ρόλο και τη σημασία των επιμέρους blogs, την ύπαρξη ή όχι μικρότερων κοινοτήτων μέσα στο δίκτυο. Επιχειρήσαμε να χρησιμοποιήσουμε όσο το δυνατόν περισσότερες μετρικές, προκειμένου να δοθεί μια καθολική και σαφής άποψη της ελληνικής μπλογκόσφαιρας. Για τη διεξαγωγή της μελέτης, πενήντα ελληνικά blogs επιλέχτηκαν ως δείγμα, των οποίων τα άρθρα ανιχνεύτηκαν με τη χρήση ενός ειδικά κατασκευασμένου web crawler προκειμένου να βρεθούν οι υφιστάμενες συνδέσεις (links). Τα αποτελέσματα έδειξαν ότι η ελληνική μπλογκόσφαιρα είναι ένα πυκνά συνδεδεμένο δίκτυο, με ορισμένα από τα blogs να ασκούν σαφώς μεγαλύτερη επιρροή από τα υπόλοιπα καθώς είναι υπεύθυνα για τη διακίνηση μεγαλύτερης ποσότητας πληροφορίας στο δίκτυο. Διαπιστώθηκε ότι τα συγκεκριμένα blogs αλληλεπιδρούν κυρίως με άλλα λιγότερο σημαντικά blogs. Η ύπαρξη επιπλέον σημαντικών ρόλων σε blogs αναζητήθηκε επίσης.
A Canadian South Asian’s experience of childhood sexual abuse and its after-effects: a revelatory narrative case study
Creators: name: Best, Maxime Pascale Norrys
Publisher: name: University of British Columbia
Year: 2009

description: Most adult childhood sexual abuse survivors in counselling and discussed in the literature are Caucasians of western ethnicity, and most counselling for survivors is based on western counselling theories. Whether the experience of childhood sexual abuse and counselling for its after-effects among Caucasian western survivors accurately reflects the experience of survivors of differing race and/or ethnicity has been little explored. Data specific to the experience of adult survivors of Asian ethnicity is very limited. To investigate this underexplored issue, a single revelatory case study was undertaken which used a phenomenological approach. Based on in-depth qualitative interviews with a female adult South Asian Ismaili Canadian childhood sexual abuse survivor, and based on adjunctive sources of evidence, a narrative life history was developed (and validated by the survivor) which described the survivor's experience of childhood sexual abuse and its aftermath and the meaning she made of her experience. Upon analysis, it was found that the survivor's narrative was not only the account of a South Asian woman who had been sexually abused in childhood, but the account of a woman who had experienced emotional neglect, physical abuse, and racism. The analysis revealed an overall narrative structure and a number of themes which indicated that the meaning the survivor made of her cummulative experiences was to self-identify as a victim and to develop a victim script which permeated most aspects of her life, which continued into adulthood, and which was inextricably linked to her identity as an Indian female. This study found that the survivor's cultural/religious environment seemed to exacerbate her victimization experience and healing opportunities, while her personal religious beliefs appeared to offer her support. Both cultural and religious elements influenced the meaning the survivor made of her experiences.
Common and Reportable Infectious Diseases of Small Ruminants
Creators: name: Hunter, Pamela A.
name: Hunter, Pamela A.
Publisher: name: Unknown
Year: 2020
Subjects: subject: Health Economics and Policy
subject: Livestock Production/Industries
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Clinical Signs
subject: Prevention
subject: Small Ruminants
subject: Ruminants

description: Keeping a herd healthy is the goal of every livestock producer. Deviation from a normal state of health leads to disease. It can have more than one cause, vary in severity, and differ from one animal to another. Of the three major categories that diseases are commonly grouped in, infectious diseases make up the largest. These are caused by “agents” and are capable of being transmitted from one animal to another, or from animals to man. While each disease can have its own clinical signs, failure to diagnose and prevent its spread can lead to catastrophic consequences to a livestock producer’s herd. This paper presents information about the clinical signs, general treatments and approaches to the prevention of some common and reportable infectious diseases of small ruminants. They include several of the important foreign animal diseases and diseases that must be reported to state officials.
Angular Momentum Transfer in Dark Matter Halos: Erasing the Cusp
Creators: name: Tonini, Chiara
name: Lapi, Andrea
name: Salucci, Paolo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose that angular momentum transfer from the baryons to the Dark Matter (DM) during the early stages of galaxy formation can flatten the halo inner density profile and modify the halo dynamics. We compute the phase-space distribution function of DM halos, that corresponds to the density and anisotropy profiles obtained from N-body simulations in the concordance cosmology. We then describe an injection of angular momentum into the halo by modifying the distribution function, and show that the system evolves into a new equilibrium configuration; the latter features a constant central density and a tangentially-dominated anisotropy profile in the inner regions, while the structure is nearly unchanged beyond 10% of the virial radius. Then we propose a toy model to account for such a halo evolution, based on the angular momentum exchange due to dynamical friction; at the epoch of galaxy formation this is efficiently exerted by the DM onto the gas clouds spiralling down the potential well. The comparison between the angular momentum profile gained by the halo through dynamical friction and that provided by the perturbed distribution function reveals a surprising similarity, hinting at the reliability of the process.
description: 10 pages, 6 figures. Minor changes, ApJ accepted
Negativity as a distance from a separable state
Creators: name: Khasin, M.
name: Kosloff, R.
name: Steinitz, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The computable measure of the mixed-state entanglement, the negativity, is shown to admit a clear geometrical interpretation, when applied to Schmidt-correlated (SC) states: the negativity of a SC state equals a distance of the state from a pertinent separable state. As a consequence, a SC state is separable if and only if its negativity vanishes. Another remarkable consequence is that the negativity of a SC can be estimated "at a glance" on the density matrix. These results are generalized to mixtures of SC states, which emerge in certain quantum-dynamical settings.
description: 9 pages, 1 figure
title: Ecosystem-Based Fisheries Management Policy, National Marine Fisheries Service Policy Directive 01-120
Creators: name: United States. National Marine Fisheries Service
Publisher: name: NOAA National Marine Fisheries Service
publisherIdentifier: https://ror.org/033mqx355
publisherIdentifierScheme: ROR
Year: 2016

description: NOAA’s National Marine Fisheries Service (NOAA Fisheries) strongly supports implementation of Ecosystem-Based Fisheries Management (EBFM) to better inform and enable better decisions regarding trade-offs among and between fisheries (commercial, recreational, and subsistence), aquaculture, protected species, biodiversity, and habitats. Recognizing the interconnectedness of these ecosystem components will help maintain resilient and productive ecosystems (including the human communities on which they depend), even as they respond to climate, habitat, ecological, and other environmental changes.
AGILE results on relativistic outflows above 100 MeV
Creators: name: Pittori, Carlotta
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We give an overview of the AGILE gamma-ray satellite scientific highlights. AGILE is an Italian Space Agency (ASI) mission devoted to observations in the 30 MeV - 50 GeV gamma-ray energy range, with simultaneous X-ray imaging in the 18-60 keV band. Launched in April 2007, the AGILE satellite has completed its tenth year of operations in orbit, and it is substantially contributing to improve our knowledge of the high-energy sky. Emission from cosmic sources at energies above 100 MeV is intrinsically non-thermal, and the study of the wide variety of observed Galactic and extragalactic gamma-ray sources provides a unique opportunity to test theories of particle acceleration and radiation processes in extreme conditions.
description: 9 pages, 5 figures
The experience of career for women who own businesses
Creators: name: Chivers, Louise
Publisher: name: University of British Columbia
Year: 2009

description: A qualitative phenomenological paradigm was utilized to explore the experience and meaning of career for women who own businesses. Ten women who owned businesses participated in this study. During individual, in-depth interviews, which were audio-taped, each woman described her experience of career as a business owner and told the story of how she came to own a business. The women reported that they experienced their careers evolving interdependently with their development as women, and the needs of their families. Nine common themes were drawn from the data using a thematic analysis procedure devised by Colaizzi (1978). The nine themes identified were: a sense of career as a representation of self; a sense of struggle to achieve a balanced life; the desire for or need for recognition or validation from themselves and others; a sense of being unique; a strong sense of independence and autonomy; the need for an interactive relationship with their environment; a strong sense of accountability for the progress, success and failure of their businesses; a sense of being influenced by the support or lack of support from others; and a strong sense of connection with and contribution to others through their work.
High-dimensional private quantum channels and regular polytopes
Creators: name: Lee, Junseo
name: Jeong, Kabgyun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: As the quantum analog of the classical one-time pad, the private quantum channel (PQC) plays a fundamental role in the construction of the maximally mixed state (from any input quantum state), which is very useful for studying secure quantum communications and quantum channel capacity problems. However, the undoubted existence of a relation between the geometric shape of regular polytopes and private quantum channels in the higher dimension has not yet been reported. Recently, it was shown that a one-to-one correspondence exists between single-qubit PQCs and three-dimensional regular polytopes (i.e., regular polyhedra). In this paper, we highlight these connections by exploiting two strategies known as a generalized Gell-Mann matrix and modified quantum Fourier transform. More precisely, we explore the explicit relationship between PQCs over a qutrit system (i.e., a three-level quantum state) and regular 4-polytope. Finally, we attempt to devise a formula for connections on higher dimensional cases.
Αξιοποίηση παγκόσμιων δεδομένων φλοιού για τον υπολογισμό βαρυτικού σήματος σε τυχαία σημεία στο χώρο:
Creators: name: Κατσιάνης, Κωνσταντίνος Αλέξανδρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Βαρυτικό σήμα
Κάτω φλοιός
Ψηφιακό μοντέλο εδάφους
Gravitational signal
Lower Crust
Digital Terrain Model, DTM

description: Σκοπός της διατριβής ήταν η αξιοποίηση παγκόσμιων δεδομένων φλοιού για τον υπολογισμό βαρυτικού σήματος σε τυχαία σημεία στο χώρο. Εξετάσαμε αρχικά τη δύναμη έλξης και το δυναμικό μιας σημειακής μάζας. Στη συνέχεια παρουσιάσαμε τα ψηφιακά μοντέλα εδάφους, καθώς και τη σύνδεση τους με το βαρυτικό σήμα. Ακόμη αναφερθήκαμε αναλυτικά στο παγκόσμιο μοντέλο φλοιού Crust 2.0 και πως υπολογίζεται το βαρυτικό σήμα με τη βοήθεια του μοντέλου Crust 2.0. Τέλος υπολογίσαμε το βαρυτικό δυναμικό και των παραγώγων του μέχρι και δεύτερης τάξης ενός προφίλ 161 σημείων.
description: The aim of the present thesis was the utilization of global crustal data for calculating the gravitational signal at random points in space. We examined the gravitational force and the potential of a point mass. Then we presented Digital Terrain Models (DTM) and their connection with the gravitational signal. Furthermore, we analyzed the global crustal model Crust 2.0 and how the gravitational signal is calculated using the model Crust 2.0. Finally we calculated the gravitational potential and its derivatives up to the second order in a profile of 161 points.
Anisotropic spin distribution and perpendicular magnetic anisotropy in the layered ferromagnetic semiconductor (Ba,K)(Zn,Mn)$_{2}$As$_{2}$
Creators: name: Sakamoto, Shoya
name: Zhao, Guoqiang
name: Shibata, Goro
name: Deng, Zheng
name: Zhao, Kan
name: Wang, Xiancheng
name: Nonaka, Yosuke
name: Ikeda, Keisuke
name: Chi, Zhendong
name: Wan, Yuxuan
name: Suzuki, Masahiro
name: Koide, Tsuneharu
name: Tanaka, Arata
name: Maekawa, Sadamichi
name: Uemura, Yasutomo J.
name: Jin, Changqing
name: Fujimori, Atsushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Perpendicular magnetic anisotropy of the new ferromagnetic semiconductor (Ba,K)(Zn,Mn)$_{2}$As$_{2}$ is studied by angle-dependent x-ray magnetic circular dichroism measurements. The large magnetic anisotropy with the anisotropy field of 0.85 T is deduced by fitting the Stoner-Wohlfarth model to the magnetic-field-angle dependence of the projected magnetic moment. Transverse XMCD spectra highlights the anisotropic distribution of Mn 3$d$ electrons, where the $d_{xz}$ and $d_{yz}$ orbitals are less populated than the $d_{xy}$ state because of the $D_{2d}$ splitting arising from the elongated MnAs$_{4}$ tetrahedra. It is suggested that the magnetic anisotropy originates from the degeneracy lifting of $p$-$d_{xz}$, $d_{yz}$ hybridized states at the Fermi level and resulting energy gain due to spin-orbit coupling when spins are aligned along the $z$ direction.
On Central Automorphisms Fixing the Center Element-wise
Creators: name: Yadav, Manoj K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D45, 20D15

description: Let $G$ be a finite $p$-group of nilpotency class 2. We find necessary and sufficient conditions on $G$ such that each central automorphism of $G$ fixes the center of $G$ element-wise.
description: Accepted for publiaction in Comm. Algebra
Visualización de Archivos Digitales de Libre Acceso y la UPS en cifras
Creators: name: Castro Arias Santiago Teodoro
Publisher: name: Zenodo
Year: 2018
Subjects: Captura Datos, Técnicas Scraping, Gráficos Interactivos, Dashboard, Universidad

description: El presente proyecto consiste en la captura y visualización de la información pública de la Universidad Politécnica Salesiana, mediante técnicas de scraping, captura manual, y análisis de documentos estructurados, del open data más importante de la Universidad. Es decir, las publicaciones UPS en Cifras y Sistema de Gestión de Archivos Físicos y Digitales – SGAD. Resumir esta información y generar visualizaciones mediante gráficos interactivos y Dashboards para el descubrimiento de nueva información de la Universidad Politécnica Salesiana del Ecuador. El objetivo de este proyecto consiste en el desarrollo de un proyecto de visualizaciones que permita analizar y conocer el comportamiento el crecimiento e impacto de la Universidad a lo largo del tiempo
FedTest workshop IEEE Conference on Network Function Virtualization and Software Defined Networks 5GinFIRE
Creators: name: Anastasius Gavras
Publisher: name: Zenodo
Year: 2017

description: 5GinFIRE Presentation at the FedTest Workshop:  The Workshop on Federated Testbeds for NFV/SDN/5G: Experiences and Feedbacks 
Ανάλυση δεδομένων στόλου γεωργικών μηχανημάτων με σκοπό την ορθολογική διαχείριση συγκομιδής
Creators: name: Γεωργακάκης, Κωνσταντίνος Εμμανουήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ανάλυση δεδομένων
Στόλος Μηχανημάτων
Συγκομιδή
Data analisys
Machinery fleet
Harvesting

description: Η παρούσα εργασία ασχολείται με την εξαγωγή και ανάλυση δεδομένων που λαμβάνουμε από τον αγρό κάνοντας χρήση μόνο των σύγχρονων συστημάτων καταγραφής δεδομένων (GPS).Τα δεδομένααφορούσαν την συγκομιδή ενσιρώματος από γεωργικές εκτάσεις της Γιουτλάνδης δυτικά της Δανίας.Κατά την πειραματική διαδικασία η μηχανή ενσίρωσης εξυπηρετώνταν από δύο εώς τρεις γεωργικούς ελκιστήρες με τις πλατφόρμες τους, ανάλογα την έκταση του κάθε χωραφιού. Όσο εργαζόταν στον αγρό ο ενσιρωτής, οι τρεις ελκυστήρες μετέφεραν το ενσίρωμα στο συλό εναλάξ για να επιτευχθεί η συνεχής ροή της συγκομιδής.Σκοπός του όλου εγχειρήματος είναι η χρήση όλων αυτών των δεδομένων σε μετέπειτα μελέτες, προκειμένου να επιτευχτεί η ορθολογικότερη διαχείριση του συνόλου των γεωργικών μηχανημάτων ενός στόλου, κατά την συγκομιδή, τόσο για εξοικονόμηση χρόνων διεργασιών όσο καυσίμων και ρύπων προς το περιβάλλον.
description: This paper deals with the extraction and analysis of data obtained from the field using only modern data recording systems (GPS). The data related to harvest silage from agricultural land in Jutland, west of Denmark. During the experimental process the silage harvester was served from two to three agricultural tractors with their platforms, depending on the scale of each field. As the silage harvester was working in the field, the three tractors carried the silage at sanctuary one by one to achieve continuous flow of harvest. The purpose of the exercise is to use all these data in subsequent studies, in order to attain rational management of all the agricultural machinery in a fleet during the harvest, to both decreasing time processes and fuel as polluting the environment.
Distraction by auditory novelty during reading: Evidence for disruption in saccade planning, but not saccade execution
Creators: name: Vasilev, Martin R.
name: Parmentier, Fabrice B. R.
name: Kirkby, Julie A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Novel or unexpected sounds that deviate from an otherwise repetitive sequence of the same sound cause behavioural distraction. Recent work has suggested that distraction also occurs during reading as fixation durations increased when a deviant sound was presented at the fixation onset of words. The present study tested the hypothesis that this increase in fixation durations occurs due to saccadic inhibition. This was done by manipulating the temporal onset of sounds relative to the fixation onset of words in the text. If novel sounds cause saccadic inhibition, they should be more distracting when presented during the second half of fixations when saccade programming usually takes place. Participants read single sentences and heard a 120 ms sound when they fixated five target words in the sentence. On most occasions (p= 0.9), the same sine wave tone was presented ("standard"), while on the remaining occasions (p= 0.1) a new sound was presented ("novel"). Critically, sounds were played either during the first half of the fixation (0 ms delay) or during the second half of the fixation (120 ms delay). Consistent with the saccadic inhibition hypothesis, novel sounds led to longer fixation durations in the 120 ms compared to the 0 ms delay condition. However, novel sounds did not generally influence the execution of the subsequent saccade. These results suggest that unexpected sounds have a rapid influence on saccade planning, but not saccade execution.
Low-energy pions in nuclear matter and 2pi photoproduction within a BUU transport model
Creators: name: Buss, Oliver
name: Alvarez-Ruso, Luis
name: Muehlich, Pascal
name: Mosel, Ulrich
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A description of low-energy scattering of pions and nuclei within a BUU transport model is presented. Implementing different scenarios of medium modifications, the mean free path of pions in nuclear matter at low momenta and pion absorption reactions on nuclei have been studied and compared to data and to results obtained via quantum mechanical scattering theory. We show that even in a regime of a long pionic wave length the semi-classical transport model is still a reliable framework for pion kinetic energies greater than ~20-30 MeV. Results are presented on pion-absorption cross sections in the regime of 10 MeV < E(kin) < 130 MeV and on photon-induced double-pion production at incident beam energies of 400-500 MeV.
description: 22 pages, 20 figures Replaced with a revised version. Accepted for publication in EPJ A. Added a short section on pion reaction and charge exchange cross-sections