cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On Fano-Enriques threefolds
Creators: name: Prokhorov, Yuri
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E30; 14E05; 14J30; 14J45; 14J28

description: Let $U\subset \mathbb P^N$ be a projective variety which is not a cone and whose hyperplane sections are smooth Enriques surfaces. We prove that the degree of a $U$ is at most 32 and the bound is sharp.
description: 18 pages, LaTeX
Field Theory in 2T-physics with N=1 Supersymmetry
Creators: name: Bars, Itzhak
name: Kuo, Yueh-Cheng
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct N=1 supersymmetric field theory in 4+2 dimensions compatible with the theoretical framework of 2T physics and its gauge symmetries. The fields are arranged into 4+2 dimensional chiral and vector supermultiplets, and their interactions are uniquely fixed by SUSY and 2T-physics gauge symmetries. In a particular gauge the 4+2 theory reduces to ordinary supersymmetric field theory in 3+1 dimensions without any Kaluza-Klein remnants, but with some additional constraints in 3+1 dimensions of interesting phenomenological relevance. This construction is another significant step in the development of 2T-physics as a structure that stands above 1T-physics.
description: 9 pages, LaTeX
Rise and fall of hidden string order of lattice bosons
Creators: name: Berg, Erez
name: Torre, Emanuele G. Dalla
name: Giamarchi, Thierry
name: Altman, Ehud
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the ground state properties of a newly discovered phase of one dimensional lattice bosons with extended interactions (see E. G. Dalla Torre et al., Phys. Rev. Lett. \textbf{97}, 260401 (2006)). The new phase, termed the Haldane Insulator (HI) in analogy with the gapped phase of spin-1 chains, is characterized by a non local order parameter, which can only be written as an infinite string in terms of the bosonic densities. We show that the string order can nevertheless be probed with physical fields that couple locally, via the effect those fields have on the quantum phase transitions separating the exotic phase from the conventional Mott and density wave phases. Using a field theoretical analysis we show that a perturbation which breaks lattice inversion symmetry gaps the critical point separating the Mott and Haldane phases and eliminates the sharp distinction between them. This is remarkable given that neither of these phases involves broken inversion symmetry. We also investigate the evolution of the phase diagram with the tunable coupling between parallel chains in an optical lattice setup. We find that inter-chain tunneling destroys the direct phase transition between the Mott and Haldane insulators by establishing an intermediate superfluid phase. On the other hand coupling the chains only by weak repulsive interactions does not modify the structure of the phase diagram. The theoretical predictions are confirmed with numerical calculations using the Density Matrix Renormalization Group (DMRG).
description: 15 pages, 8 figures. Minor corrections, published version
Charmonium and Charmoniumlike States at the BESIII Experiment
Creators: name: Yuan, Chang-Zheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Charmonium is a bound state of a charmed quark and a charmed antiquark, and a charmoniumlike state is a resonant structure that contains a charmed quark and antiquark pair but has properties that are incompatible with a conventional charmonium state. While operating at center-of-mass energies from 2 to 4.9 GeV, the BESIII experiment can access a wide mass range of charmonium and charmoniumlike states, and has contributed significantly in this field. We review BESIII results involving conventional charmonium states, including the first observation of M1 transition $ψ(3686) \to γη_c(2S)$ and the discovery of the $ψ_2(3823)$; and report on studies of charmoniumlike states, including the discoveries of the $Z_c(3900)$ and $Z_c(4020)$ tetraquark candidates, the resolution of the fine structure of the $Y(4260)$, the discovery of the new production process $e^+e^-\to γX(3872)$, and the uncovering of strong evidence for the commonality among the $X(3872)$, $Y(4260)$, and $Z_c(3900)$ states. The prospects for further research at BESIII and proposed future facilities are also presented.
description: 18 pages, 7 figures. Invited review for `National Science Review'
Anomalous Hall effect in Rashba two-dimensional electron systems based on narrow-band semiconductors: side-jump and skew scattering mechanisms
Creators: name: Liu, S. Y.
name: Horing, Norman J. M.
name: Lei, X. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We employ a helicity-basis kinetic equation approach to investigate the anomalous Hall effect in two-dimensional narrow-band semiconductors considering both Rashba and extrinsic spin-orbit (SO) couplings, as well as a SO coupling directly induced by an external driving electric field. Taking account of long-range electron-impurity scattering up to the second Born approximation, we find that the various components of the anomalous Hall current fit into two classes: (a) side-jump and (b) skew scattering anomalous Hall currents. The side-jump anomalous Hall current involves contributions not only from the extrinsic SO coupling but also from the SO coupling due to the driving electric field. It also contains a component which arises from the Rashba SO coupling and relates to the off-diagonal elements of the helicity-basis distribution function. The skew scattering anomalous Hall effect arises from the anisotropy of the diagonal elements of the distribution function and it is a result of both the Rashba and extrinsic SO interactions. Further, we perform a numerical calculation to study the anomalous Hall effect in a typical InSb/AlInSb quantum well. The dependencies of the side-jump and skew scattering anomalous Hall conductivities on magnetization and on the Rashba SO coupling constant are examined.
description: 16 pages, 4 figures, accepted for publication in PRB
Characterization of turbulent supersonic flow over a backward facing step through POD
Creators: name: Soni, R. K.
name: Arya, N.
name: De, Ashoke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The present work reports on the flow physics of turbulent supersonic flow over backward facing step (BFS) at Mach 2 using LES methodology where the dynamic Smagorinsky model is used for SGS modeling, while POD is invoked to identify the coherent structures present in the flow. The mean data obtained through the computations is in good agreement with the experimental measurements, while the iso-surfaces of Q-criterion at different time instants show the complex flow structures. The presence of counter rotating vortex pair in the shear layer along with the complex shock wave/boundary layer interaction leading to the separation of boundary layer is also evident from the contours of both Q and the modulus of vorticity. Further, the POD analysis reveals the presence of coherent structures, where the first and second modes confirm the vortical structures near the step as well as along the shear layer in the downstream region; while the second, third and fourth modes confirm the presence of vortices along the shear layer due to Kelvin-Helmholtz (K-H) instability. Moreover, POD as well as frequency analysis is extended at different planes to extract the detailed flow features.
Σχολιασμένη μετάφραση του έργου Διαλογισμοί μέσα σ’ έναν πλάτανο της Adriana Bonavia Giorgetti
Creators: name: Λεμονή, Αννα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: πλάτανο-διαλογισμό
ελεύθεροι συνειρμοί
plane tree-meditation
free associations

description: Σκοπός της διατριβής είναι η σχολιασμένη μετάφραση στα ελληνικά ενός αποσπάσματος (περίπου 3000 λέξεις) του βιβλίου Διαλογισμοί μέσα σ’ έναν πλάτανο της Adriana Bonavia Giorgetti. Εντόπισα αρχικά και ομαδοποίησα σε τρία σημασιολογικά πεδία τις λέξεις, τις εκφράσεις και τις σύντομες προτάσεις που θεώρησα ως κλειδί ερμηνείας του βιβλίου. Εντόπισα επίσης δύο στοιχεία μορφοσυντακτικού χαρακτήρα που μου επέτρεψαν να βγάλω συμπεράσματα σχετικά με την ψυχολογική στάση της συγγραφέως απέναντι από έναν πλάτανο και γενικά από την φύση. Στη συνέχεια μετέφρασα το έργο και σχολίασα αναλυτικά τις μορφοσυντακτικές δομές της ιταλικής που δεν έχουν άμεση αντιστοιχία στα ελληνικά και μπορούν να παρουσιάζουν κάποια δυσκολία για έναν έλληνα μεταφραστή. Ακόμη περιέγραψα την διαδικασία που ακολούθησα στην μετάφραση των λέξεων και των εκφράσεων στις οποίες συνάντησα ιδιαίτερη δυσκολία
description: The aim of the present thesis was the annotated translation, about 3.000 words, of book’s excerpt Meditazioni dentro un platano di Adriana Bonavia Giorgetti in Greek. Initially, we identified and grouped the words, the phrases and the short sentences we considered as the key interpretation of the book, in three semantic fields. We also identified two morphosyntactic nature elements that led us to draw conclusions concerning the writer’s psychological attitude towards the content of her work. Then we translated the work and we commented in detail the morphosyntactic structures of Italian that have no direct correspondence to Greek and may present some difficulty for a Greek translator. We also described the complex process that we followed translating words and phrases in which we met particular difficulty.
Rural Land Transfers in the United States
Creators: name: Barkley, Paul W.
name: Wunderlich, Gene
name: Barkley, Paul W.
name: Wunderlich, Gene
Publisher: name: Unknown
Year: 1989
Subjects: Agricultural Finance
Farm Management
Land Economics/Use

description: Land transfers are the cutting edge in the structure of landownership and control. Even though the annual turnover in rural land is very slow--currently 4.6 percent of parcels and 3.5 percent of land--concerns linger that farmers in the United States are losing control of the resource that is basic to their industry. Small, persistent changes can eventually make a difference, but the data examined here indicate that a transfer of landownership out of agriculture is occurring at an almost imperceptibly slow pace.
Shear design of pile caps and other members without transverse reinforcement
Creators: name: Zhou, Zongyu
Publisher: name: University of British Columbia
Year: 2009

description: This thesis deals with the shear design of structural concrete members without trans verse reinforcement. The three major parts of this study are the transverse splitting of compression struts confined by plain concrete, the development of a rational design procedure for deep pile caps, as well as a general study of the shear transfer mechanisms of concrete beams. Three-dimensional compression struts that are unreinforced and confined by plain concrete, as occur in deep pile caps, were studied both analytically and experimentally. Based on the study results, bearing stress limits are proposed to prevent compression struts from transverse splitting. The maximum bearing stress depends on the amount of confinement, as well as the aspect ratio (height to width) of the compression strut. The proposed bearing stress limit was incorporated into a strut-and-tie model to develop a rational design procedure for deep pile caps. Two methods are proposed. The first method is a direct extension of two-dimensional strut-and-tie models used for deep beams. The second method is presented in a more traditional form in which “flexural design” and “shear design” are separated. The shear design is accomplished by limiting the bearing stress at the columns and the piles. The first method is more appropriate for analysis, while the second method is more appropriate for design. The rationality and accuracy of the proposed methods are demonstrated by the comparison with previous test results. In the final part of this study, the influence of bond between concrete and longitudinal reinforcement upon the load transfer mechanism of both deep members and slender members without stirrups are investigated. An interpretation of an important shear failure mechanism is presented.
All-optical atom surface traps implemented with one-dimensional planar diffractive microstructures
Creators: name: Alloschery, O.
name: Mathevet, R.
name: Weiner, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We characterize the loading, containment and optical properties of all-optical atom traps implemented by diffractive focusing with one-dimensional (1D) microstructures milled on gold films. These on-chip Fresnel lenses with focal lengths of the order of a few hundred microns produce optical-gradient-dipole traps. Cold atoms are loaded from a mirror magneto-optical trap (MMOT) centered a few hundred microns above the gold mirror surface. Details of loading optimization are reported and perspectives for future development of these structures are discussed.
description: 7 pages, 15 figures
Νομοκανονική προσέγγιση της οργάνωσης και λειτουργίας των Ιερών Μονών στο Πατριαρχείο Αντιοχείας
Creators: name: Ουασσούφ, Νερμίν Μπασσάμ
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: κανονική οργάνωση Μονών
εσωτερικοί Κανονισμοί Μονών
Πατριαρχείο Αντιοχείας
canonical organization of Monasteries
internal Regulation of Monasteries
Patriarchate of Antioch

description: Η παρούσα εργασία έχει ως στόχο της να προσφέρει μια μικρή συμβολή στον αγώνα της Εκκλησίας της Αντιοχείας για την «κανονική» και εύρυθμη λειτουργία των Ι. Μονών της επί τη βάσει των Ι. Κανόνων, των μοναστηριακών Τυπικών, των απο¬φάσεων των Ι. Συνόδων και των νόμων της Πολιτείας. Εξετάζοντας τα ανά τους αιώνες μοναστηριακά Τυπικά και το νομοκανονικό πλαίσιο της αυτοκέφαλης Εκκλη¬σίας της Ελλά-δος (με τους εσωτερικούς Κανονισμούς των γυναικείων Ι. Μο-νών), καθώς και αυτό του Πατριαρχείου Αντιοχείας και των Μονών αυτού, κα¬ταλήγουμε σε ορισμένα συμπεράσματα και προτάσεις
description: The present work aims to offer a little contribution to the struggle of the Church of Antioch, for the “canonical” and harmonic function of its Holy Monasteries, on the basis of the Holy Canons, the Monastic Typica, the Holy Synods’ decisions and the State’s laws. Reviewing the Monastic Typica throughout the centuries and the Canon Law of the Autocephalous Church of Greece (including the Holy Convents’ inter¬nal Regulations), as well as that of the Patriarchate of Antioch and its Mo¬nasteries, we have come to certain conclusions and suggestions
Behavior of the S Parameter in the Crossover Region Between Walking and QCD-Like Regimes of an SU(N) Gauge Theory
Creators: name: Kurachi, Masafumi
name: Shrock, Robert
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a vectorial, confining SU(N) gauge theory with a variable number, $N_f$, of massless fermions transforming according to the fundamental representation. Using the Schwinger-Dyson and Bethe-Salpeter equations, we calculate the $S$ parameter in terms of the current-current correlation functions. We focus on values of $N_f$ such that the theory is in the crossover region between the regimes of walking behavior and QCD-like (non-walking) behavior. Our calculations indicate that the contribution to $S$ from a given fermion decreases as one moves from the QCD-like to the walking regimes. The implications of this result for technicolor theories are discussed.
description: 14 pages, 4 figures
Phase-Programmable Gaussian Boson Sampling Using Stimulated Squeezed Light
Creators: name: Zhong, Han-Sen
name: Deng, Yu-Hao
name: Qin, Jian
name: Wang, Hui
name: Chen, Ming-Cheng
name: Peng, Li-Chao
name: Luo, Yi-Han
name: Wu, Dian
name: Gong, Si-Qiu
name: Su, Hao
name: Hu, Yi
name: Hu, Peng
name: Yang, Xiao-Yan
name: Zhang, Wei-Jun
name: Li, Hao
name: Li, Yuxuan
name: Jiang, Xiao
name: Gan, Lin
name: Yang, Guangwen
name: You, Lixing
name: Wang, Zhen
name: Li, Li
name: Liu, Nai-Le
name: Renema, Jelmer
name: Lu, Chao-Yang
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The tantalizing promise of quantum computational speedup in solving certain problems has been strongly supported by recent experimental evidence from a high-fidelity 53-qubit superconducting processor1 and Gaussian boson sampling (GBS) with up to 76 detected photons. Analogous to the increasingly sophisticated Bell tests that continued to refute local hidden variable theories, quantum computational advantage tests are expected to provide increasingly compelling experimental evidence against the Extended Church-Turing thesis. In this direction, continued competition between upgraded quantum hardware and improved classical simulations is required. Here, we report a new GBS experiment that produces up to 113 detection events out of a 144-mode photonic circuit. We develop a new high-brightness and scalable quantum light source, exploring the idea of stimulated squeezed photons, which has simultaneously near-unity purity and efficiency. This GBS is programmable by tuning the phase of the input squeezed states. We demonstrate a new method to efficiently validate the samples by inferring from computationally friendly subsystems, which rules out hypotheses including distinguishable photons and thermal states. We show that our noisy GBS experiment passes the nonclassicality test using an inequality, and we reveal non-trivial genuine high-order correlation in the GBS samples, which are evidence of robustness against possible classical simulation schemes. The photonic quantum computer, Jiuzhang 2.0, yields a Hilbert space dimension up to $10^{43}$, and a sampling rate $10^{24}$ faster than using brute-force simulation on supercomputers.
description: 23 pages, 6 figures. Comments are welcome
Lattice QCD calculation of the electroweak box diagrams for the kaon semileptonic decays
Creators: name: Ma, Peng-Xiang
name: Feng, Xu
name: Gorchtein, Mikhail
name: Jin, Lu-Chang
name: Seng, Chien-Yeah
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a lattice QCD calculation of the axial $γW$-box diagrams relevant for the kaon semileptonic decays. We utilize a recently proposed method, which connects the electroweak radiative corrections in Sirlin's representation to that in chiral perturbation theory. It allows us to use the axial $γW$-box correction in the SU(3) limit to obtain the low energy constants for chiral perturbation theory. From first principles our results confirm the previously used low energy constants provided by the minimal resonance model with a significant reduction in uncertainties.
description: 16 pages, 3 figures
The relation between the symplectic group $Sp(4, \mathbb{R})$ and its Lie algebra: its application in polymer quantum mechanics
Creators: name: Chacón-Acosta, Guillermo
name: García-Chung, Angel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we show the relation between $sp(4,\mathbb{R})$, the Lie algebra of the symplectic group, and the elements of $Sp(4,\mathbb{R})$. We use this result to obtain some special cases of symplectic matrices relevant to the study of squeezed states. In this regard, we provide some applications in quantum mechanics and analyze the squeezed polymer states obtained from the polymer representation of the symplectic group. Remarkably, the polymer's dispersions are the same as those obtained for the squeezed states in the usual representation.
description: 31 pages, 2 figures
Tunneling study of cavity grade Nb: possible magnetic scattering at the surface
Creators: name: Proslier, T.
name: Zasadzinski, J. F.
name: Cooley, L.
name: Antoine, C.
name: Moore, J.
name: Pellin, M.
name: Norem, J.
name: Gray, K. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Tunneling spectroscopy was performed on Nb pieces prepared by the same processes used to etch and clean superconducting radio frequency (SRF) cavities. Air exposed, electropolished Nb exhibited a surface superconducting gap delta=1.55 meV, characteristic of clean, bulk Nb. However the tunneling density of states (DOS) was broadened significantly. The Nb pieces treated with the same mild baking used to improve the Q-slope in SRF cavities, reveal a sharper DOS. Good fits to the DOS were obtained using Shiba theory, suggesting that magnetic scattering of quasiparticles is the origin of the gapless surface superconductivity and a heretofore unrecognized contributor to the Q-slope problem of Nb SRF cavities.
description: 3 pages, 3 figures
Extrinsically flat static spacetimes
Creators: name: Zaslavskii, O. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider static spacetimes whose spatial part admits foliations with the extrinsic curvature tensor K_{ab}=0. There are two complementary cases when the gradient of the lapse function points 1) to the direction of foliation or 2) orthogonally to it. Case 1) gives generalization of metrics like Bertotti-Robinson or Nariai. In case 2) the matter source violates the null energy condition at least on the part of the manifold, having in this sense phantom nature. We also demonstrate that for the manifolds under discussion the horizon can be naked in the sense that certain Weyl components diverge in the free-falling frame although the Kretschmann scalar is finite. The Petrov type is D or O. Explicit solutions for (i) the linear anisotropic equation of state, (ii) Chaplygin gas and (iii) uniform energy density are found.
description: 25 pages. To appear in Class. Quant. Grav
The Bulk-Hinge Correspondence and Three-Dimensional Quantum Anomalous Hall Effect in Second Order Topological Insulators
Creators: name: Fu, Bo
name: Hu, Zi-Ang
name: Shen, Shun-Qing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The chiral hinge modes are the key feature of a second order topological insulator in three dimensions. Here we propose a quadrupole index in combination of a slab Chern number in the bulk to characterize the flowing pattern of chiral hinge modes along the hinges at the intersection of the surfaces of a sample. We further utilize the topological field theory to demonstrate the correspondent connection of the chiral hinge modes to the quadrupole index and the slab Chern number, and present a picture of three-dimensional quantum anomalous Hall effect as a consequence of chiral hinge modes. The two bulk topological invariants can be measured in electric transport and magneto-optical experiments. In this way we establish the bulk-hinge correspondence in a three-dimensional second order topological insulator.
description: 6 pages, 3 figures
A Monte-Carlo study of the AdS/CFT correspondence: an exploration of quantum gravity effects
Creators: name: Berenstein, David
name: Cotta, Randel
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study the AdS/CFT correspondence for N=4 SYM with gauge group U(N), compactified on S^3 in four dimensions using Monte-Carlo techniques. The simulation is based on a particular reduction of degrees of freedom to commuting matrices of constant fields, and in particular, we can write the wave functions of these degrees of freedom exactly. The square of the wave function is equivalent to a probability density for a Boltzman gas of interacting particles in six dimensions. From the simulation we can extract the density particle distribution for each wave function, and this distribution can be interpreted as a special geometric locus in the gravitational dual. Studying the wave functions associated to half-BPS giant gravitons, we are able to show that the matrix model can measure the Planck scale directly. We also show that the output of our simulation seems to match various theoretical expectations in the large N limit and that it captures 1/N effects as statistical fluctuations of the Boltzman gas with the expected scaling. Our results suggest that this is a very promising approach to explore quantum corrections and effects in gravitational physics on AdS spaces.
description: 40 pages, 7 figures, uses JHEP. v2: references added
Акция «АнтиСПИД» в Харьковской области в декабре 2000 года, посвященная Всемирному дню борьбы со СПИДом
Creators: name: Золотарев В.Ф.
name: Сергеевич, Шевченко Александр
name: Белоцерковский Ю.И.
name: Латышев Л.Е.
name: Коровкин М.В.
name: Савенко И.А.
name: Гончарова Л.В.
name: Земляной В.А.
Publisher: name: Zenodo
Year: 2001
Subjects: ВИЧ/СПИД
Всемирный день борьбы со СПИДом
UNAIDS
эпидемиология
акции в профилактике
медицинское просвещение
пути заражения
HIV/AIDS
World AIDS Day
epidemiology
actions in prevention
medical enlightenment
ways of infection

description: На русском: [Золотарев В.Ф., Шевченко А.С., Белоцерковский Ю.И., Латышев Л.Е., Коровкин М.В., Савенко И.А., Гончарова Л.В., Земляной В.А. Акция «АнтиСПИД» в Харьковской области в декабре 2000 года, посвященная Всемирному дню борьбы со СПИДом // Сборник тезисов конференции молодых ученых Харьковского государственного медицинского университета "Медицина третьего тысячелетия" (г. Харьков, 17-18 января 2001 года), часть 2. - Украина, Харьков: ХГМУ, 2001. - С. 76-77. https://doi.org/10.5281/zenodo.3349563] Эпидемическая обстановка по ВИЧ/СПИДу на Украине заставляет проводить активную профилактическую работу. Традиционно такая работа активизируется ко Всемирному дню борьбы со СПИДом. Ключевые слова: ВИЧ/СПИД, Всемирный день борьбы со СПИДом, UNAIDS, эпидемиология, акции в профилактике, медицинское просвещение, пути заражения. In English: [Zolotarev V.F., Shevchenko Alexander S., Belotserkovsky Y.I., Latyshev L.E., Korovkin M.V., Savenko I.A., Goncharova L.V., Zemlyanoy V.A. (2001) The "Anti-AIDS" campaign in the Kharkov region in December 2000, dedicated to the World AIDS Day (rus.) / Collection of abstracts of the conference of young scientists of Kharkov State Medical University "Medicine of the third millennium" (Ukraine, Kharkov, January 17-18, 2001), part 2, pp. 76-77. https://doi.org/10.5281/zenodo.3349563] The epidemic situation on HIV / AIDS in Ukraine makes it necessary to carry out active preventive work. Traditionally, such work is activated by World AIDS Day. Keywords: HIV/AIDS, World AIDS Day, UNAIDS, epidemiology, actions in prevention, medical enlightenment, ways of infection.
Η εκκλησιαστική επαρχία Παραμυθίας και το φιλεκπαιδευτικό έργο σε αυτήν (1850-1913)
Creators: name: Χρηστίδη, Ηλέκτρα Ιωάννη
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Επισκοπή-Παραμυθιά-Εκπαίδευση
Diocese-Paramythia-Education

description: Αυτή η διπλωματική εργασία εξετάζει την εκκλησιαστική επαρχία Παραμυθίας και το φιλεκπαιδευτικό έργο σε αυτήν κατά τους τελευταίους χρόνους της Οθωμανικής κατοχής αυτής της περιοχής. Οι περισσότερες ιστορικές μορφές εκείνης της εποχής παρουσιάζονται σε αυτό το έργο. Ιστορικές μορφές όπως οι Επίσκοποι και οι Μητροπολίτες της Παραμυθίας οι οποίοι προσέφεραν τα μέγιστα στην εκπαίδευση της περιοχής τους και επίσης στήριξαν με ποικιλόμορφες ενέργειες τους κατοίκους της. Επιπρόσθετα αναλύονται οι συνθήκες ζωής των κατοίκων της Παραμυθίας που έζησαν κατά την Οθωμανική κατοχή της περιοχής τους. Πιο συγκεκριμένα γίνονται πολλές αναφορές στο εκπαιδευτικό τους σύστημα, στο φορολογικό τους σύστημα και στην διοίκηση της περιοχής τους. Όλα αυτά ήταν άμεσα συσχετιζόμενα με το έργο της Ηπειρώτικης Επισκοπής τους κατά πολλούς τρόπους όπως αποδεικνύεται σε αυτή την μελέτη. Τέλος κάτι που είναι άξιο αναφοράς είναι ότι αυτή η διπλωματική επικεντρώνεται στην αναζήτηση της ιστορικής αλήθειας και για αυτό όλα τα ιστορικά γεγονότα που περιγράφονται σε αυτό το έργο περιγράφονται χωρίς προκατάληψη. Η βιβλιογραφία αυτού του πονήματος δείχνει ακριβώς όλα τα ιστορικά βιβλία και έγγραφα στα οποία γίνονται αναφορές των ιστορικών γεγονότων των τελευταίων χρόνων της Οθωμανικής κατοχής της Παραμυθίας. Αυτό είναι εν συντομία το περιεχόμενο αυτής της διπλωματικής το οποίο ελπίζεται ότι θα είναι αρεστό από τους αναγνώστες του
description: This present thesis inspects the ecclesiastical diocese of Paramythia and the promotion of educational work within it during the latter years of the Ottoman occupation of that area. Most of the historical figures of that time are presented in this work. Historical figures such as the Bishops and the Metropolitan Bishops of Paramythia who offered so much to the education of their diocese and who also supported its people with variform actions. Furthermore the life conditions of the people of Paramythia who lived there during the Ottoman occupation of their area are being analyzed. More specifically many references are being made regarding their educational system, their fiscal system and to the administration of their area. All these were quite related to the offer of their Epirot Diocese in many ways as it is proved in this study. Finally, something that is well worth mentioning is that this thesis is focused on the quest of the historical truth and that is why all the actual historical events that are described in this work are described without bias. The bibliography of this project shows exactly all the historical books and documents in which references are being made based on the actual historical events of the latter years of the Ottoman occupation of Paramythia. This is briefly speaking the subject matter of this thesis which is hoped to be liked by its readers
Risk planning for large and BOT projects : a holistic framework
Creators: name: Yaworsky, Ronald Anthony
Publisher: name: University of British Columbia
Year: 2009

description: Large engineering projects embody a number of special aspects and unique characteristics in comparison to smaller undertakings. Additionally, a growing number of large projects are undertaken employing the Build-Operate-Transfer (‘BOT’) approach, significantly increasing the project’s complexity. With the BOT model of project delivery, the private sector finances, builds and operates a revenue-generating project, usually one which would have traditionally been executed in the public sector. Despite the range of available risk assessment methods and techniques, significant aspects of the challenges which large and BOT projects face may be attributed to shortcomings in current risk planning processes. On larger projects, risk planning is important as risks are more numerous; additionally on BOT projects risks are not only more numerous, many are novel and longer-lasting. The unique aspects of large engineering projects were defined, with a view to provide guidance to participants. The ‘BOT’ project delivery process was examined, and through an examination of the approach, the six phases of ‘PEN-BOT’ were proposed (Propose, Evaluate, Negotiate, Build, Operate, Transfer) as a better description of the phases and the process. A survey illustrating the increasing popularity of the PEN-BOT approach was presented, including a detailed case study of the Channel Crossing project, outlining both the prevalence and the unique challenges of the such projects and lessons drawn from the problems encountered. The attitudes and perceptions of project participants respecting risk planning issues were surveyed in a working environment through a “Project Planning Issues Questionnaire”. The significant differences, amongst project participants, in risk and project planning attitudes and perceptions was revealed with a number of recommendations addressing these problems developed. A Holistic Risk Planning Framework was presented as a map of a process to address many issues which in themselves, are difficult to structure, particularly within the environment of large and PEN-BOT projects. The Framework defines an approach to formalize and organize risk planning processes with the benefits of identifying linkages, gaps and weaknesses in the planning process, and thus enhancing the project’s chance of success.
Development and Evaluation of an IMU-based Wearable Device for ACL Injury Research
Creators: name: Kresie, Scott
Publisher: name: figshare
Year: 2021
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: 90302 Biomechanical Engineering
subject: FOS: Medical engineering

description: Anterior cruciate ligament (ACL) injuries are common, costly and have long-term health consequences. ACL injuries are commonly attributed to a single rare, acute, high loading event. However, evidence in the literature supports an alternative injury mechanism - sub-failure ACL cyclic loading causes microtrauma that accumulates over time, compromising ACL mechanical properties and making it more likely to fail at lower loads. To test hypotheses related to this cyclic loading injury mechanism, a method is needed to record and track in-vivo the frequency and magnitude of ACL loading events. Inertial measurement unit (IMU) based wearable devices offer a means to measure the frequency and magnitude of these loading events throughout the duration of physical activities in an ecologically valid environment. The goal of this research was to develop and evaluate an IMU-based approach to quantify a metric clinically relevant to tracking ACL loading events in-vivo. Anterior displacement of the tibia relative to the femur is a primary loading mechanism of the ACL. Reliable measurement of this mm-scale displacement using IMU data is not feasible, but relative anterior tibial acceleration (RATA - the second time derivative of anterior tibial translation) is a potential surrogate metric of ACL loading that can be measured with IMUs. The objectives of this thesis were to: (1) develop and test an algorithm to take data from two IMUs placed on the thigh and shank and calculate RATA, (2) identify the effects soft-tissue has on measuring RATA and address these effects in the algorithm, and (3) evaluate the utility of the wearable device during athletic activity performed by human subjects.
Ταφικές πρακτικές στη Μακεδονία και στην Ήπειρο την εποχή του Χαλκού
Creators: name: Παπαζαχαρίου, Ελλη-Μαρία Ζήση
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Μακεδονία-Ήπειρο-Ταφικές πρακτικές
Macedonia-Epirus-Burial practices

description: Η παρούσα εργασία με τίτλο «Ταφικές πρακτικές στη Μακεδονία και στην Ήπειρο την εποχή του Χαλκού» κινείται κατά βάση σε δύο άξονες. Στον ένα άξονα γίνεται λεπτομερής περιγραφή των χαρακτηριστικών των νεκροταφείων που συναντώνται στη Μακεδονία και στην Ήπειρο την εποχή του Χαλκού. Ο άλλος άξονας αφορά στη συγκέντρωση όλων των νεκροταφείων από την περιοχή της Μακεδονίας, στα οποία πραγματοποιήθηκαν ανθρωπολογικές μελέτες, με ιδιαίτερη επισήμανση στο φύλο και στην ηλικία των νεκρών. Επίσης, στην εργασία γίνεται μια σύντομη αναφορά στην ιστορία της έρευνας στις δύο περιοχές, όπως επίσης και στην εξέλιξη του περιβάλλοντος από την εποχή του Χαλκού ως τις μέρες μας. Επιπροσθέτως γίνεται αναφορά στους οικισμούς της εποχής του Χαλκού στη Μακεδονία και στην Ήπειρο. Τέλος, στα συμπεράσματα προτείνονται σκέψεις σχετικά με τους «οικογενειακούς δεσμούς», με τη μυκηναϊκή παρουσία στις δύο περιοχές, με κοινωνικές διαφοροποιήσεις μέσα στα νεκροταφεία, όπως επίσης και με στοιχεία εμπορικών επαφών.
description: The aim of the present thesis, entitled "Burial practices in Macedonia and Epirus the Bronze Age", based on two axes. On one axis is detailed description of the characteristics of cemeteries found in Macedonia and Epirus the Bronze Age. The other axis is the concentration of all the cemeteries of the region of Macedonia, which took place anthropological studies, with particular focus to the sex and age of the dead. Also, there is a brief reference to the history of research in both regions, as well as the evolution of the environment from the Bronze Age to the present day. Moreover reference is made in the settlements of the Bronze Age in Macedonia and Epirus. Finally, in the conclusions offered thoughts about "family ties" , the Mycenaean presence in both regions, the social differentiations within the cemeteries, as well as commercial contacts data.
CFD-CAA simulation of flow acoustic coupling in a half-dump combustor
Creators: name: De, Ashoke
name: Kushari, Abhijit
name: K, Sudharsan
name: Konreddy, GeethaSri
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper reports on the investigation of combustion instabilities in a Methane air nonpremixed half dump combustor for different flow Reynolds number using Computational aero acoustic simulation. In order to simulate the flow physics under turbulent flow conditions, Detached Eddy Simulation in conjunction with generalized eddy dissipation model is adopted, while a CAA formulation based on Lighthills acoustic analogy is used for computing the acoustic field. It is observed that the unsteady pressure signals either predominantly arise from the natural acoustic modes of the duct or the local flow fluctuations in the vortex shedding process downstream of the dump plane, giving rise to different dominant frequencies at different spatial locations at lower Re and a single dominant lockedon frequency at higher Re. The nondimensional numbers (Helmholtz and Strouhal numbers) are used to characterize the duct acoustic modes from the vortex shedding modes. Under reacting flow conditions, unsteady heat release and pressure oscillations are monitored to compute Rayleigh index in order to verify if the instability is driving or damping at different frequency levels. Moreover, the predicted Helmholtz and Strouhal numbers are found to be in excellent agreement with the experimental data available in open literature for wide range of Re.
Spot deformation and replication in the two-dimensional Belousov-Zhabotinski reaction in water-in-oil microemulsion
Creators: name: Kolokolnikov, Theodore
name: Tlidi, Mustapha
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In the limit of large diffusivity ratio, spot-like solutions in the two-dimensional Belousov-Zhabotinski reaction in water-in-oil microemulsion are studied. It is shown analytically that such spots undergo an instability as the diffusivity ratio is decreased. An instability threshold is derived. For spots of small radius, it is shown that this instability leads to a spot splitting into precisely two spots. For larger spots, it leads to deformation, fingering patterns and space-filling curves. Numerical simulations are shown to be in close agreement with the analytical predictions.
description: To appear, PRL
The inner structure of the S0 galaxy NGC3384
Creators: name: Meusinger, H.
name: Ismail, H. A.
name: Notni, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We re-investigate the lenticular galaxy NGC 3384, a member of the LeoI galaxy group, using HST and multi-colour Calar Alto observations. Various approaches are used to visualize the two known peculiar components, the so-called inner component (IC) and the elongated component (EC), on the HST images. The methods were checked in detail using synthetical images from simulated galaxies. For the first time, we make the IC as well as the inner part of the EC visible on direct images. The results confirm both the bar-like appearance of the inner EC and the quasi-elliptical shape of the IC. The IC resembles an inclined disk where the surface brightness becomes successively shallower towards the centre compared to an exponential profile. The orientation of the inner part of the EC is perpendicular to the major axis of the IC. The broad-band colour indices are shown to be in agreement with model predictions for a 5 to 7 Gyr old stellar population of quasi-solar metallicity. No significant large-scale variations of the colour indices over the main body of the galaxy are found. We discuss the previously reported colour gradients close to the nucleus and argue that the most plausible explanation is reddening by small amounts of dust though unsharpe masked HST images do not provide significant hints for clumpy dust. According to the episodic dust settling scenario suggested by Lauer et al (2005), the very low dust fraction indicates that NGC3384 is in a post-activity phase and at the beginning of a new dust-settling cycle.
description: 15 pages, 17 figures, to be published in Astronomische Nachrichten
Semantic elicitation: Modality
Creators: name: Cheruiyot, Ezra
name: Bossi, Madeline
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: sgc

description: One .wav file and one .pdf file. Elicitation of modality questionnaire to understand Kipsigis modal inventory, with a focus on epistemic modality and modal force flexibility with rɑisi. Began transcription of text in 2019-26.162 at end of meeting.
Gluonic contribution to $B\to η^{(\prime)}$ form factors
Creators: name: Charng, Yeo-Yie
name: Kurimoto, T.
name: Li, Hsiang-nan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the flavor-singlet contribution to the $B\toη^{(\prime)}$ transition form factors from the gluonic content of the $η^{(\prime)}$ meson in the large-recoil region using the perturbative QCD approach. The formulation for the $η$-$η'$ mixing in the quark-flavor and singlet-octet schemes is compared, and employed to determine the chiral enhancement scales associated with the two-parton twist-3 $η^{(\prime)}$ meson distribution amplitudes. It is found that the gluonic contribution is negligible in the $B\toη$ form factors, and reaches few percents in the $B\toη'$ ones. Its impact on the accommodation of the measured $B\toη^{(\prime)} K$ branching ratios in the perturbative QCD and QCD-improved factorization approaches is elaborated.
description: 13 pages, 9 figures, a missing overall coefficient was included into the gluonic contribution. The numerical results were revised accordingly
Αναγνώριση και ταξινόμηση υφής εικόνων με τη χρήση της αρχιτεκτονικής HPREMONN
Creators: name: Μάντζιαρης, Αγησίλαος Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Νευρωνικά δίκτυα
Ιεραρχική δομή
Αναγνώριση υφής
Τμηματοποίηση Εικόνας
Neural networks
Hierarchical trees
Texture recognition
Image segmentation

description: Αντικείμενο τη εργασίας αυτής είναι η μοντελοποίηση, η ταξινόμηση και η ομαδοποίηση υφών φωτογραφιών. Το στοιχειώδες εργαλείο που χρησιμοποιήθηκε είναι τα νευρωνικά δίκτυα τα οποία οραγνώνονται σε μία ιεραρχική δομή, κατάλληλη για να περιγράψει με προοδευτικό τρόπο την ομαδοποίηση των μοντέλων, που προσομοιώνουν τις υφές, με τη διαδιακασία διαχωρισμού του «διαίρει και βασίλευε». Στόχος της ιεραρχικής δομής είναι να αποδείξει ότι μπορεί να οδηγήσει σε ταχεία κατηγοριοποίηση δεδομένων υφών με ακρίβεια που πλησιάζει το 100%. Η ακρίβεια αυτή θεωρητικά μπορεί να επιτευχθεί μόνο για δεδομένα υφών που έχουν ήδη ομαδοποιηθεί στην ιεραρχική δομή. Συνεπώς, το μείζων ζήτημα, πέραν της πρακτικής αποδείξης του θεωρητικού σκέλους της εργασίας, είναι να ανιχνευθούν τα επίπεδα αντοχής της ιεραρχικής δόμης – δέντρου στην ύπαρξη θορύβου, στα προς εξέταση δεδομένα. Η μεγαλύτερη πρόκληση της εργασίας είναι να ανιχνεύσει το κατά πόσο θα μπορούσε να γενικευθεί μία τέτοια δομή προκειμένου να αναγνωρίζει με επιτυχία ή να κατηγοριοποιεί με βάση τη συνάφεια, ανεξάρτητες υφές από αυτές που ήδη γνωρίζει το δέντρο των υφών.Απώτερος προσανατολισμός της μελέτης αυτής είναι να καταστρωθεί μία μεθοδολογία θα μπορεί να χρησιμοποιηθεί από εργαλεία που αναγνωρίζουν υφές εικόνων που λαμβάνουν από κάμερες. Αν αυτά τα μηχανήματα είναι αυτόνομα οχήματα, τότε οι χρόνοι απόκρισης τους θα πρέπει να είναι μικρότεροι από 0.2sec. Αυτό το κατωφλι χρόνου προσπαθεί η εργασία αυτή να προσεγγίσει
description: The scope of this thesis was the development of a methodology in order to detect and recognize image textures. The fundamental system for this methodology is the artificial neural networks. The organization of the numerous models that have been created to represent textures was applied to a hierarchical decision tree, which clusters the data and improves the response time to a new sample. Specifically, 17321 models have been constructed and categorized by the hierarchical tree. 1/5 of these models were used to ascertain the performance of the tree in making quick decisions. The results proved the theoretical knowledge about the efficiency of the hierarchical structure. The tolerance to noise levels was also tested. This methodology can be used as a guide for carrying out data pre-processing by making simple changes at the function keys of the neural network, in order to identify the best model for textures. The usefulness of the methodology is the specification of the procedure, the practical proof of the theory and the potential use for real applications