cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of plasmonic Aluminum nanoparticles shapes on optical absorption enhancement in silicon thin-film solar cells
Creators: name: Rassekh, Maedeh
name: Shirmohammadi, Reza
name: Ghasempour, Roghayeh
name: Astaraei, Fatemeh Razi
name: Shayesteh, Saber Farjami
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Scattering from metal nanoparticles near their localized plasmon resonance; especially, the resonances of noble metals which are mostly in the visible or infrared part of the electromagnetic spectrum; is a way of improving light absorption in thin-film solar cells. The surface plasmon resonance can be affected by different factors such as the type, size, shape, and dielectric properties of the surrounding medium. Here we investigate, using the Finite Difference Time Domain (FDTD) method, how different shapes of aluminum nanoparticles affect absorption enhancement in silicon thin-film solar cells. Our results show that using these particles more than 30% conversion efficiency for plasmonic solar cells can be achieved compared to a cell without particles. We have also found that although the spherical particles have the highest absorption peak, optimization of some parameters such as the height of the cylinder or disk-shaped particles and their distance from the substrate can increase the absorption. The results can provide more information and insight to understand and optimize plasmonic particles for solar cell applications.
Designing for Resilience with Unaccompanied Migrant Youth from the Arab World.
Creators: name: Tachtler, F
Publisher: name: Zenodo
Year: 2017

description: This one-day workshop was held as part of the DIS 2017 annual ACM SIGCHI Conference on Designing Interactive Systems, held in Edinburgh, UK, held between 10 and 14 June 2017.
Choquet order for spectra of higher Lame operators and orthogonal polynomials
Creators: name: Borcea, Julius
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: Primary 34L20; Secondary 30C15, 33C45, 60E15

description: We establish a hierarchy of weighted majorization relations for the singularities of generalized Lamé equations and the zeros of their Van Vleck and Heine-Stieltjes polynomials as well as for multiparameter spectral polynomials of higher Lamé operators. These relations translate into natural dilation and subordination properties in the Choquet order for certain probability measures associated with the aforementioned polynomials. As a consequence we obtain new inequalities for the moments and logarithmic potentials of the corresponding root-counting measures and their weak-$^*$ limits in the semi-classical and various thermodynamic asymptotic regimes. We also prove analogous results for systems of orthogonal polynomials such as Jacobi polynomials.
description: final version, to appear in J. Approx. Theory; 14 pages, no figures, LaTeX2e
Σχέδιο ορολογίας IATE : μια πρακτική και θεωρητική προσέγγιση
Creators: name: Γάκη, Θωμαή Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Ορολογία
Σχέδιο ορολογίας IATE
Μετανάστευση
Terminology
IATE terminology project
Migration

description: Σκοπός της διατριβής ήταν η ολοκληρωμένη και λεπτομερής παρουσίαση ενός σχεδίου ορολογίας στον τομέα της μετανάστευσης και η ανάδειξη του επιστημονικού και κοινωνικού ρόλου της ορολογίας. Αποτελείται από δυο μέρη, ένα εμπειρικό και ένα θεωρητικό και συνοδεύεται από δυο παραρτήματα. Το εμπειρικό κομμάτι περιλαμβάνει την επιμέλεια μιας ορολογικής βάσης η οποία αποτελείται από 169 όρους. Το θεωρητικό κομμάτι χωρίζεται σε τρία μέρη. Στο πρώτο σκιαγραφείται το θεωρητικό υπόβαθρο του επιστημονικού πεδίου της ορολογίας. Εν συνεχεία αναλύεται η ταυτότητα του σχεδίου ορολογίας και γίνεται η σύνδεση με τον τομέα της μετανάστευσης. Το τελευταίο μέρος αφορά την υλοποίηση της έρευνας όπου περιγράφονται τα βασικά στάδια αυτής και βασικά προβλήματα που αντιμετωπίστηκαν κατά την διεξαγωγή της. Η εργασία ολοκληρώνεται με την συνόψιση των κυριότερων στόχων και την καταγραφή ερευνητικών συμπερασμάτων.
description: The aim of the present thesis was the integrated and detailed presentation of a terminology project in the domain of migration through which the scientific and social role of terminology would also be highlighted. It consists of two parts, an empirical and a theoretical and is also accompanied by two appendixes. The empirical part includes an edited termabase that contains 169 terms. The theoretical part is divided in three sections. In the first section the theoretical background of the scientific field of terminology is outlined. Consequently the identity of the project is being analyzed and the connection with the domain of migration is being made. The third section concerns the conducted research with a description of all the steps and main problems that were encountered during its prosecution. The thesis concludes with a summary of the main objectives and the recording of the research findings.
Deflected Anomaly Mediation and Neutralino Dark Matter
Creators: name: Cesarini, Alessandro
name: Fucito, Francesco
name: Lionetto, Andrea
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the phenomenology of the neutralino dark matter in the so called deflected anomaly mediation scenario. This scheme is obtained from the minimal anomaly mediated scenario by introducing a gauge mediated sector with $N_f$ messenger fields. Unlike the former scheme the latter has no tachyons. We find that the neutralino is still the LSP in a wide region of the parameter space: it is essentially a pure bino in the scenario with $N_f=1$ while it can also be a pure higgsino for $N_f>1$. This is very different from the naive anomaly mediated scenario which predicts a wino like neutralino. Moreover we do not find any tachyonic scalars in this scheme. After computing the relic density (considering all the possible coannihilations) we find that there are regions in the parameter space with values compatible with the latest WMAP results with no need to consider moduli fields that decay in the early universe.
description: 23 pages, 6 figures, submitted to Phys. Rev. D
Characterisation of light-absorbing atmospheric particles in the Brussels sub-urban atmosphere
Creators: name: Mangold, Alexander
name: Delcloo, Andy
name: Laffineur, Quentin
name: De Bock, Veerle
name: Steenhuyzen, Nathalie
name: Van Dijck, Brent
Publisher: name: Karlsruhe
Year: 2019

description: The particle composition is important for air quality studies in the urban atmosphere. In particular, particles smaller than 1 μm are increasingly in the focus with respect to human health because of they are inhalable deeply into the human lung. A relevant part of such (ultra-)fine particles are light-absorbing particles. Important sources for such particles in the cities and residential areas are emissions from traffic (mainly soot), but also emissions from wood-burning stoves in private households. The relative contributions of these sources to the atmospheric particle load are important to know in order to be able to reduce hazardous emissions by specific measures. The Royal Meteorological Institute of Belgium (RMI) gathers ambient aerosol data in Brussels with a 7-wavelengths aethalometer (mass concentration and absorption coefficient of light-absorbing aerosol). The measurement site is located in the sub-urban, rather residential southern part of Brussels and measurements are representative for the urban background. At the same site, the boundary layer height and atmospheric stability parameter are derived from a co-located ceilometer and eddy-covariance system. Further, RMI uses the multi-scale chemical transport model CHIMERE, coupled to the high resolution regional numerical weather prediction limited area model ALARO. In this context, CHIMERE will be used to evaluate emission scenarios. The wavelength dependency of the measured aerosol parameters revealed distinct variations of aerosol composition, both on a daily, weekly, and seasonal scale. The Absorption Angstrom Exponent (AAE; spectral dependency of the absorption coefficient) revealed values around 1.3 during winter and around 1.0 during summer months. As fresh soot has a flat spectrum, (i.e., AAE around 1.0), higher AAE values during winter meant that other light-absorbing compounds, which absorb stronger in the UV, increased in importance (e.g., wood burning aerosol). The multi-wavelengths data is exploited to derive the relative contribution of fresh soot (thus traffic emissions) and other sources to the amount of light-absorbing aerosol. The influence of boundary layer height and atmospheric stability on the aerosol data will be presented.
Additional file 1 of Multiple drug resistance bacterial isolates and associated factors among urinary stone patients at the University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia
Creators: name: Desie Kasew
name: Setegn Eshetie
name: Abeje Diress
name: Zerubabiel Tegegne
name: Feleke Moges
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1. English version of the questionnaire.
Self-organized vortex and antivortex patterns in laser arrays
Creators: name: Honari-Latifpour, Mostafa
name: Ding, Jiajie
name: Takei, So
name: Miri, Mohammad-Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recently it is shown that dissipatively coupled laser arrays simulate the classical XY model. We show that phase-locking of laser arrays can give rise to the spontaneous formation of vortex and antivortex phase patterns that are analogous to topological defects of the XY model. These patterns are stable although their formation is less likely in comparison to the ground state lasing mode. In addition, we show that small ratios of photon-to-gain lifetime destabilizes vortex and antivortex phase patterns. These findings are important for studying topological effects in optics as well as for designing laser array devices.
Optimal dense coding with arbitrary pure entangled states
Creators: name: Feng, Yuan
name: Duan, Runyao
name: Ji, Zhengfeng
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine dense coding with an arbitrary pure entangled state sharing between the sender and the receiver. Upper bounds on the average success probability in approximate dense coding and on the probability of conclusive results in unambiguous dense coding are derived. We also construct the optimal protocol which saturates the upper bound in each case.
description: 5 pages, journal version
Desafios encontrados por psicólogos imigrantes: uma revisão narrativa
Creators: name: Souza, Patrícia Cristina Climaco de
Publisher: name: Zenodo
Year: 2023
Subjects: Processos Migratórios
Psicólogo Imigrante
Mudanças Culturais
Artigo Original

description: Resumo – Migrações internacionais são frequentemente encaradas como um fenômeno "patológico" a ser controlado, o que torna esse processo desafiador em diversos aspectos. Diante da escassez de estudos nessa temática, este trabalho visa identificar os desafios psicológicos, burocráticos, culturais e financeiros enfrentados por psicólogos brasileiros que atuam no exterior. Utilizando uma abordagem de revisão narrativa com análise de conteúdo, a pesquisa destaca cinco (05) categorias temáticas em relação às problemáticas encontradas: dificuldades gerais nos processos migratórios, homologação de diploma, impactos culturais e qualidade de vida, abordagem psicológica para Imigrantes e rede social e aculturação. Este estudo contribui para a compreensão dos obstáculos enfrentados pelos psicólogos migrantes, fornecendo informações cruciais e insights valiosos para aqueles interessados nas complexidades da jornada migratória.
Sum-rule Conserving Spectral Functions from the Numerical Renormalization Group
Creators: name: Weichselbaum, Andreas
name: von Delft, Jan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show how spectral functions for quantum impurity models can be calculated very accurately using a complete set of ``discarded'' numerical renormalization group eigenstates, recently introduced by Anders and Schiller. The only approximation is to judiciously exploit energy scale separation. Our derivation avoids both the overcounting ambiguities and the single-shell approximation for the equilibrium density matrix prevalent in current methods, ensuring that relevant sum rules hold rigorously and spectral features at energies below the temperature can be described accurately.
description: 4 pages + 1 page appendix, 2 figures
Classical Lagrangians for the nonminimal spin-nondegenerate Standard-Model Extension at higher orders in Lorentz violation
Creators: name: Reis, João A. A. S
name: Schreck, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present new results for classical-particle propagation subject to Lorentz violation. Our analysis is dedicated to spin-nondegenerate operators of arbitrary mass dimension provided by the fermion sector of the Standard-Model Extension. In particular, classical Lagrangians are obtained for the operators $\hat{b}_μ$ and $\hat{H}_{μν}$ as perturbative expansions in Lorentz violation. The functional dependence of the higher-order contributions in the background fields is found to be quite peculiar, which is probably attributed to particle spin playing an essential role for these cases. This paper closes one of the last gaps in understanding classical-particle propagation in the presence of Lorentz violation. Lagrangians of the kind presented will turn out to be valuable for describing particle propagation in curved backgrounds with diffeomorphism invariance and/or local Lorentz symmetry explicitly violated.
description: 10 pages, prepared for submission to Phys. Lett. B
Η πολλαπλή παλινδρόμηση ως εργαλείο εκτίμησης καταιγιδοφόρου δραστηριότητας
Creators: name: Μήκα, Ευαγγελία Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Πολλαπλή παλινδρόμηση
Καταιγιδοφόρος δραστηριότητα-ΕκτίμησηMultiple regression
Thunderstorm activity-Estimate

description: Εφαρμόζεται η μεθοδολογία της Πολλαπλής Γραμμικής Παλινδρόμησης με αντικειμενικό σκοπό να δημιουργηθεί ένα μοντέλο, κατάλληλο για την εκτίμηση-πρόβλεψη καταιγιδοφόρου δραστηριότητας. Για την υλοποίηση του στόχου αυτού χρησιμοποιήθηκαν δεδομένα καταιγιδοφόρου δραστηριότητας της ανώτερης ατμόσφαιρας. Τις ανεξάρτητες μεταβλητές απετέλεσαν οι παράμετροι: οι δείκτες αστάθειας της ατμόσφαιρας Total-Τotals και ΚΙ, ο δείκτης υγρασίας ΗΙ, της ισοδύναμης δυνητικής θερμοκρασίας SI-theta και I-theta, καθώς και η παράμετρος του γεωδυναμικού ύψους FH. Ως εξαρτημένη μεταβλητή είναι η μέγιστη ανακλαστικότητα του ραντάρ καιρού κατά τη διάρκεια της καταιγιδοφόρου δραστηριότητας. Για τις παραπάνω παραμέτρους υπολογίστηκαν όλα τα περιγραφικά στατιστικά μέτρα. Έγινε έλεγχος ως προς την κανονικότητα, εφαρμόζοντας το Kolmogorov-Smirnov τεστ. Υπολογίστηκε η συσχέτιση εκάστης των ανεξάρτητων παραμέτρων με την εξαρτημένη, μέσω του μη παραμετρικού μέτρου της στατιστικής, τον συντελεστή συσχέτισης Spearman. Εφαρμόζοντας τη μεθοδολογία της Πολλαπλής Γραμμικής Παλινδρόμησης υπολογίσθηκε η τελική έκφραση του μοντέλου εκτίμησης της καταιγιδοφόρου δραστηριότητας, η αξιοπιστία της οποίας εκτιμήθηκε με τη σύγκρισή του ως προς τις πραγματικές μετρήσεις της μέγιστης ανακλαστικότητας του ραντάρ καιρού και η οποία κρίθηκε αρκετά ικανοποιητική.
description: The methodology of Multiple Linear Regression is applied with objective purpose the creation of a model, suitable for estimation-prediction of storm-bringing activity. For the implementation of this target I have used data from storm-bringing activity of the upper atmosphere. The independent variables were: the unstable indices of atmosphere Total-Totals and KI, the index of moisture HI, of the equivalent potential temperature SI-theta and I-theta, as well as the parameter of geodynamic height FH. The dependent variable is the maximum reflectivity of weather radar during the storm-bringing activity. For the above parameters, all the descriptive statistical measures were calculated. Normality control has done using Kolmogorov-Smirnov test. It was calculated the correlation each independent parameter with the dependent, using the non-parametric measure of statistics, the Spearman correlation coefficient. By applying the methodology of Multiple Linear Regression, it was calculated the final expression of the prediction model of the storm-bringing activity, where the reliability was estimated by comparison with the real measurements of the maximum reflectivity of weather radar, which was quite satisfactory.
Continuous growth models in terms of generalized logarithm and exponential functions
Creators: name: Martinez, Alexandre Souto
name: Gonzalez, Rodrigo Silva
name: Tercariol, Cesar Augusto Sangaletti
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Finance (q-fin.GN)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Consider the one-parameter generalizations of the logarithmic and exponential functions which are obtained from the integration of non-symmetrical hyperboles. These generalizations coincide to the one obtained in the context of non-extensive thermostatistics. We show that these functions are suitable to describe and unify the great majority of continuous growth models, which we briefly review. Physical interpretation to the generalization function parameter is given for the Richards' model, which has an underlying microscopic model to justify it.
description: 7 pages, 1 table and 1 figure
Ο ρόλος των ΑΞΕ και του Θεσμικού περιβάλλοντος στη συμπεριφορά των Εγχώριων Επενδύσεων για τις αναπτυσσόμενες χώρες
Creators: name: Κουλουτμπάνη, Αννα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: ΑΞΕ
Αμεσες ξένες επενδύσεις
Θεσμοί
Εγχώριες Επενδύσεις
FDI
Institutions
Domestic Investment
Foreign Direct Investment

description: Αρκετοί είναι οι παράγοντες που επηρεάζουν την ανάπτυξη μιας οικονομίας, ο σημαντικότερος, όμως, φαίνεται να είναι η προσέλκυση επενδύσεων. Πολύς λόγος γίνεται κυρίως τα τελευταία χρόνια για τις Εγχώριες και Άμεσες Ξένες Επενδύσεις (ΑΞΕ) και την επιτακτική ανάγκη να δημιουργηθεί ευνοϊκό κλίμα και να διαμορφωθούν οι κατάλληλες πολιτικές, προκειμένου οι διάφορες χώρες να προσελκύσουν επενδυτές. Στην παρούσα διπλωματική εργασία εξετάζεται ο ρόλος του Θεσμικού περιβάλλοντος και των ΑΞΕ στις Εγχώριες Επενδύσεις. Τα δεδομένα που αντλήθηκαν είναι τύπου πάνελ και αναφέρονται στην χρονική περίοδο 1996-2014, για 37 αναπτυσσόμενες χώρες. Η εμπειρική ανάλυση έγινε με δυναμικές τεχνικές πάνελ δεδομένων και πιο συγκεκριμένα με τη χρήση της Γενικευμένης Μεθόδου Ροπών (Generalized Method of Moments- GMM) που αναπτύχθηκε από τον Hansen (1982). Τα αποτελέσματα της εμπειρικής ανάλυσης επιβεβαιώνουν ότι οι ΑΞΕ και οι Θεσμοί επιδρούν θετικά στις Εγχώριες Επενδύσεις μεμονωμένα, αλλά όταν αλληλεπιδρούν με κάποιο τρόπο μπορεί να φέρουν τα αντίθετα αποτελέσματα.
description: There are several factors that influence the development of economy. However, the most important seems to be attracting investment. There is argument especially in recent years for the Foreign and Direct Investments and the urgent need to create a favorable climate and develop appropriate policies so as different countries to attract investors. The present paper examines the effect of institutional indicators and foreign direct investments on domestic investments. The data being used are panel data and refer to the time period 1996 to 2014 for thirty seven developing countries. Empirical analysis was done with dynamic data panel techniques and more specifically the Generalized Method of Moments (GMM) was used. The last was developed by Hansen (1982). The results of the empirical analysis confirm that Institutions and FDI separately affect positively the Domestic Investment, but when there is interaction in some way between government effectiveness and FDI the results are opposite.
One-sided destructive quantum interference from an exceptional point-enabled metasurface
Creators: name: Liang, Hong
name: Lau, Kai Ming
name: Wong, Wai Chun
name: Du, Shengwang
name: Tam, Wing Yim
name: Li, Jensen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose the concept of one-sided quantum interference based on non-Hermitian metasurfaces.By designing bianisotropic metasurfaces with a non-Hermitian exceptional point, we show that quantum interference can exist only on only one side but not another. This is the quantum inheritance of unidirectional zero reflection in classical optics.The one-side interference can be further manipulated with tailor-made metasurface. With two photons simultaneously entering the metasurface from different sides, the probability for only outputting one photon on the side with reflection can be modified to zero as a one-sided destructive quantum interference while the output on another side is free of interference. We design the required bianisotropic metasurface and numerically demonstrate the proposed effect. The non-Hermitian bianisotropic metasurfaces provide more degrees of freedom in tuning two-photon quantum interference, in parallel to the celebrated Hong-Ou-Mandel effect.
description: 10 pages, 5 figures
Phase diagram of the spin-1 anisotropic Heisenberg model with a single-ion anisotropy
Creators: name: Dely, Jan
name: Strecka, Jozef
name: Canova, Lucia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The spin-1 anisotropic Heisenberg model with a single-ion anisotropy is studied using the Oguchi's pair approximation. Although the theory is developed for lattices with general coordination number, we treat in detail the three-dimensional lattice with the lowest coordination number, i.e. diamond lattice, where the critical and tricritical behavior of the system is analyzed as a function of both the single-ion anisotropy and exchange anisotropy.
description: 2 pages, 2 figures, presented at 15th Conference of Slovak Physicists to be held in Stara Lesna on 11th-14th September 2006, Slovakia
Synchronizing the asynchronous
Creators: name: Henzinger, Thomas
name: Kragl, Bernhard
name: Qadeer, Shaz
Publisher: name: IST Austria
Year: 2017
Subjects: 000 Computer science, knowledge & general works

description: Synchronous programs are easy to specify because the side effects of an operation are finished by the time the invocation of the operation returns to the caller. Asynchronous programs, on the other hand, are difficult to specify because there are side effects due to pending computation scheduled as a result of the invocation of an operation. They are also difficult to verify because of the large number of possible interleavings of concurrent asynchronous computation threads. We show that specifications and correctness proofs for asynchronous programs can be structured by introducing the fiction, for proof purposes, that intermediate, non-quiescent states of asynchronous operations can be ignored. Then, the task of specification becomes relatively simple and the task of verification can be naturally decomposed into smaller sub-tasks. The sub-tasks iteratively summarize, guided by the structure of an asynchronous program, the atomic effect of non-atomic operations and the synchronous effect of asynchronous operations. This structuring of specifications and proofs corresponds to the introduction of multiple layers of stepwise refinement for asynchronous programs. We present the first proof rule, called synchronization, to reduce asynchronous invocations on a lower layer to synchronous invocations on a higher layer. We implemented our proof method in CIVL and evaluated it on a collection of benchmark programs.
Neurite inhibiting factors from the developing and mature spinal cord
Creators: name: Ethell, Douglas Wayne
Publisher: name: University of British Columbia
Year: 2008

description: The developing spinal cord supports the outgrowth of ascending and descending pathways as well as propriospinal connections between spinal cord segments (Okado and Oppenheim, 1985). During this early embryonic period axonal injury is readily repaired, in part due to the similar environments required by developing and regenerating axons (Shimizu et al., 1990). Soon after completing the development of long ascending and descending tracts the environment of the spinal cord changes such that subsequent damage to axons within longitudinal spinal pathways does not result in regeneration. Several recent studies on the embryonic chick (Shimizu et al, 1990; Hasan et al., 1991, 1993) have established embryonic day (E) 13 as the approximate time when the transition from a "permissive" to "restrictive" environment for spinal cord repair occurs. What developmental changes bring about this physiological loss of regenerative ability remains unclear. Several reports have documented that neurite inhibiting proteins, associated with myelin, are one group of factors preventing axonal repair in the adult CNS (Caroni and Schwab, 1988; Schwab and Caroni, 1988). This dissertation describes an examination of several biochemical changes accompanying the loss of regenerative ability during spinal cord development. Proteins isolated from an individual developing thoracic spinal cord were separated using high resolution 2D gel electrophoresis and compared with proteins expressed at other developmental ages. Initially, ten protein spots were identified as showing consistent changes in expression over a developmental period encompassing the transition. Two of these protein spots were of sufficient abundance to be further isolated for internal amino acid sequencing. One novel protein has been identified (DSP 7) and is currently the subject of cloning experiments. Plasma membranes purified from early embryonic chick and rat spinal cord were shown to provide a supportive substrate for the differentiation and outgrowth of neuroblastoma x glioma hybrid NG108-15 cells, in vitro. However, plasma membranes isolated from spinal cords later in development displayed an increasing neurite inhibiting activity. Components of plasma membranes were further purified and tested as substrates for neurite outgrowth, in vitro. No inhibitory effects were observed when purified lipids alone were used as substrates for neurite outgrowth. Although a specific neurite inhibiting protein was not isolated, a crude lipid isolation protocol co-purified proteins with strong neurite inhibitory effects. Major components of the extracellular matrix, heparan sulfate and chondroitin sulfate proteoglycans, were also examined for changes over the developmental period encompassing the transition from permissive to restrictive periods for spinal cord repair. The ratio of neurite promoting heparan sulfate proteoglycans to neurite inhibiting chondroitin sulfate proteoglycans decreases as spinal cord development proceeds.
On entropy production for controlled Markovian evolution
Creators: name: Pavon, M.
name: Ticozzi, F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider thermodynamic systems with finitely many degrees of freedom and subject to an external control action. We derive some basic results on the dependence of the relative entropy production rate on the controlling force. Applications to macromolecular cooling and to controlling the convergence to equilibrium rate are sketched. Analogous results are derived for closed and open n-level quantum systems.
description: 19 pages
Analysis of stock market crises: a network theory approach
Creators: name: Βαμβακάρης, Μιχαήλ Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Οικονομικές κρίσεις
Γράφοι ορατότητας
Χρηματοοικονομικές κρίσεις
Economic Crisis
Visibility Graph
Financial Crisis

description: In literature, the issue of economic and financial crisis is well studied and many econometric models have been developed for predicting economic or financial crisis or investigating if a crisis affects significantly the economy and financial markets. However, only a little work has been done on how crisis affects the way that stock markets behave. In this work, we take advantage of the recently introduced Visibility Graph algorithm, a method that maps a time series into a network, and we examine how stock markets responded to specific events. More specifically, using five minutes data from January 1996 to March 2016 for the S&P100, S&P500 and S&P1000 indexes, we make a quantitative analysis of the indexes behaviour during this period. We found that indexes react immediately in almost all events and in some cases there are even some early warnings. However, the magnitude of the reaction depends on the size of the index and all indexes do not react in the same way under the same circumstances. Finally, the time series of the returns of an index do not demonstrate the same properties as the price time series.
description: Στη βιβλιογραφία, το θέμα των οικονομικών και χρηματοοικονομικών κρίσεων έχει μελετηθεί επαρκώς και πολλά οικονομετρικά μοντέλα έχουν αναπτυχθεί με σκοπό είτε να προβλέψουν μελλοντικές οικονομικές ή χρηματοοικονομικές κρίσεις είτε να μελετήσουν αν οι κρίσεις επιδρούν σημαντικά στον τρόπο λειτουργίας των οικονομιών και των αγορών γενικότερα. Ωστόσο, λίγη έρευνα έχει αναπτυχθεί πάνω στο πως οι κρίσεις επηρεάζουν τον τροπό λειτουργίας των χρηματηστηριακών αγορών. Σε αυτή την εργασία εκμεταλλευόμαστε την θεωρία Γράφων Ορατότητας που αναπτυχθηκε πρόσφατα, μια μέθοδος που μετατρέπει μια χρονοσειρά σε γράφημα, και εξετάζουμε πως οι χρηματιστηριακές αγορές αντιδρούν στα διάφορα γεγονότα. Πιο συγκεκριμένα, χρησιμοποιώντας δεδομένα με συχνότητα ανα πέντε λεπτά απο τον Ιανουάριο του 1996 μέχρι τον Μάρτιο του 2016, πραγματοποιούμε μια ποσοτική ανάλυση της συμπεριφοράς των χρηματιστηριακούς δεικτών S&P100, S&P500 και S&P1000. Τα αποτελέσματα δείχνουν ότι αυτοί οι δείκτες αντέδρασαν τάχυστα σε όλα τα γεγονότα που έλαβαν χώρα αυτή την περίοδο ενώ σε κάποιες περιπτώσεις το χρηματιστήριο αντέδρασε εκ των προτέρων σηματοδοτώντας επικείμενα γεγονότα. Έπισης, φάνηκε ότι το μέγεθος του κάθε δείκτη παιζει σημαντικό ρόλο στον τρόπο που αντιδράει ο κάθε δείκτης κάτω από τις ίδιες συνθήκες καθώς όλοι οι δείκτες δεν αντιδρούν με τον ίδιο τρόπο και το ίδιο έντονα. Τέλος, οι χρονοσειρές των αποδόσεων των δεικτών δεν εμφανίζουν τις ίδες ιδιότητες με τις άρχικές χρονοσειρές των δεικτών.
Additional file 1 of The preventive efficacy of vitamin B supplements on the cognitive decline of elderly adults: a systematic review and meta-analysis
Creators: name: Li, Shufeng
name: Guo, Yuchen
name: Men, Jie
name: Fu, Hanlin
name: Xu, Ting
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Neuroscience
Biotechnology
Science Policy
Mental Health

description: The PRISMA checklist of current meta-analysis.
Η Διαφθορά στο πεδίο της παροχής ιατρικών υπηρεσιών στο Δημόσιο τομέα, οι κανόνες δεοντολογίας για την αντιμετώπισή της και η ποινική της καταστολή.
Creators: name: Σκεύα, Αναστασία Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Διαφθορά
Δεοντολογία
Παροχή ιατρικών υπηρεσιών στο Δημόσιο τομέα
Corruption
Ethics
Public health services

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι να διασαφηνιστεί το φαινόμενο της διαφθοράς στο πεδίο των ιατρικών υπηρεσιών στο δημόσιο τομέα. Παρουσιάζεται η έκταση του φαινομένου, τα αίτιά του και στατιστικά στοιχεία από επίσημες έρευνες διάφορων φορέων της Ελλάδας και του εξωτερικού που αποδεικνύουν ότι το δημόσιο νοσοκομείο κατέχει τις πρώτες θέσεις ανάμεσα σε άλλους διεφθαρμένους χώρους και υπηρεσίες. Κρίσιμη είναι η αναφορά των ηθικών και δεοντολογικών βάσεων αντιμετώπισης της διαφθοράς, με έμφαση στον Κώδικα Ιατρικής Δεοντολογίας, στον όρκο του Ιπποκράτη αλλά και σε κανόνες Διοικητικής Δεοντολογίας, με βασικό, την ανιδιοτελή άσκηση της δημόσιας υπηρεσίας. Τέλος, αναφέρεται η διεθνής προέλευση της εσωτερικής μας ποινικής νομοθεσίας και εξετάζονται τα εγκλήματα που είναι άρρηκτα συνδεδεμένα με τη διαφθορά, τα οποία είναι η δωροδοκία, η δωροληψία, η αξιόποινη πράξη της καλλιέργειας κλίματος και το αδίκημα της εμπορίας επιρροής.
description: The purpose of this study is to examine the issue of corruption in the public health services. It presents the extent of the issue, its causes as well as statistics derived from research studies which were conducted by various Greek and foreign authorities. These studies prove that the state hospital is along with others, one of the most corrupt services. One of the crucial points of this paper is the reference to ethical principles which can tackle corruption, with emphasis on medical ethics, the Hippocratic Oath, rules of good administrative conduct and the most important of all, the altruistic, uncorrupt public service provision. In conclusion, the study touches upon the international origins of our national penal law and examines the crimes which are inextricably linked to corruption, such as active and passive corruption and trading in influence.
Cross-species analysis of biological networks by Bayesian alignment
Creators: name: Berg, Johannes
name: Lässig, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Complex interactions between genes or proteins contribute a substantial part to phenotypic evolution. Here we develop an evolutionarily grounded method for the cross-species analysis of interaction networks by {\em alignment}, which maps bona fide functional relationships between genes in different organisms. Network alignment is based on a scoring function measuring mutual similarities between networks taking into account their interaction patterns as well as sequence similarities between their nodes. High-scoring alignments and optimal alignment parameters are inferred by a systematic Bayesian analysis. We apply this method to analyze the evolution of co-expression networks between human and mouse. We find evidence for significant conservation of gene expression clusters and give network-based predictions of gene function. We discuss examples where cross-species functional relationships between genes do not concur with sequence similarity.
description: Published version - new title and figure, some changes to the text. 10 pages, 5 figures. Supporting text is available from the authors
Additional file 1 of Differential neurovirulence of Usutu virus lineages in mice and neuronal cells
Creators: name: Clé, Marion
name: Constant, Orianne
name: Barthelemy, Jonathan
name: Desmetz, Caroline
name: Martin, Marie France
name: Lapeyre, Lina
name: Cadar, Daniel
name: Savini, Giovanni
name: Teodori, Liana
name: Monaco, Federica
name: Schmidt-Chanasit, Jonas
name: Juan-Carlos Saiz
name: Gonzales, Gaëlle
name: Lecollinet, Sylvie
name: Beck, Cécile
name: Gosselet, Fabien
name: Perre, Philippe Van De
name: Foulongne, Vincent
name: Salinas, Sara
name: Simonin, Yannick
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Additional file 1: Supplemental Figure 1. Two USUV EU2 strains induce a specific CPE and persistent viral replication in astrocytes. Supplemental Figure 2. Differential CPE in USUV-infected murine microglia and neurons cells. Supplemental Figure 3. USUV isolates induces CPE in human endothelial cells with an atypical shape for EU2 while there is no CPE in pericytes.
On the mode stability of a self-similar wave map
Creators: name: Donninger, Roland
name: Aichelburg, Peter C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study linear perturbations of a self-similar wave map from Minkowski space to the three-sphere which is conjectured to be linearly stable. Considering analytic mode solutions of the evolution equation for the perturbations we prove that there are no real unstable eigenvalues apart from the well-known gauge instability.
description: Accepted for publication in J. Math. Phys., some changes to match the published version
Dynamical Approach to the TAP Equations for the Sherrington-Kirkpatrick Model
Creators: name: Adhikari, Arka
name: Brennecke, Christian
name: von Soosten, Per
name: Yau, Horng-Tzer
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a new dynamical proof of the Thouless-Anderson-Palmer (TAP) equations for the classical Sherrington-Kirkpatrick spin glass at sufficiently high temperature. In our derivation, the TAP equations are a simple consequence of the decay of the two point correlation functions. The methods can also be used to establish the decay of higher order correlation functions. We illustrate this by proving a suitable decay bound on the three point functions from which we derive an analogue of the TAP equations for the two point functions.
description: 31 pages
Towards Microscopic Understanding of the Phonon Bottleneck
Creators: name: Garanin, D. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The problem of the phonon bottleneck in the relaxation of two-level systems (spins) to a narrow group of resonant phonons via emission-absorption processes is investigated from the first principles. It is shown that the kinetic approach based on the Pauli master equation is invalid because of the narrow distribution of the phonons exchanging their energy with the spins. This results in a long-memory effect that can be best taken into account by introducing an additional dynamical variable corresponding to the nondiagonal matrix elements responsible for spin-phonon correlation. The resulting system of dynamical equations describes the phonon-bottleneck plateau in the spin excitation, as well as a gap in the spin-phonon spectrum for any finite concentration of spins. On the other hand, it does not accurately render the lineshape of emitted phonons and still needs improving.
description: 13 Phys. Rev. pages, 5 figure captions (7 figures)
Additional file 1 of Genome sequencing, annotation and exploration of the SO2-tolerant non-conventional yeast Saccharomycodes ludwigii
Creators: name: Tavares, Maria J.
name: Güldener, Ulrich
name: Mendes-Ferreira, Ana
name: Mira, Nuno P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1 Supplementary figures – This file has included a set of 5 supplementary figures providing: a dendrogram comparing the ITS region of the yeast strains used for the comparative proteomic analysis performed (Figure S1), phographs obtained by microscopic imaging of S. ludwigii UTAD17 cells cultivated in minimal medium having glucose or GlcNAc as the sole carbon source (Figure S2), a functional distribution of the S. ludwigii UTAD17 ORFeome, as performed by the BLASTKoala Annotation tool (Figure S3), the alignment of the protein sequence of the transcription factors ScMsn2, ScCom2 and the S. ludwigii predicted regulator SCLUD3.g33 (Figure S4), the alignment of the protein sequence of the efflux pump ScSsu1 and of the four predicted S. ludwigii orthologues SCLUD1.g608, SCLUD1.g612, SCLUD1.g608b, SCLUD1.g612b (Figure S5).
Spatially resolved photo ionization of ultracold atoms on an atom chip
Creators: name: Kraft, S.
name: Günther, A.
name: Fortágh, J.
name: Zimmermann, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report on photo ionization of ultracold magnetically trapped Rb atoms on an atom chip. The atoms are trapped at 5 $μ$K in a strongly anisotropic trap. Through a hole in the chip with a diameter of 150 $μ$m two laser beams are focussed onto a fraction of the atomic cloud. A first laser beam with a wavelength of 778 nm excites the atoms via a two photon transition to the 5D level. With a fiber laser at 1080 nm the excited atoms are photo ionized. Ionization leads to depletion of the atomic density distribution observed by absorption imaging. The resonant ionization spectrum is reported. The setup used in this experiment is not only suitable to investigate BEC ion mixtures but also single atom detection on an atom chip.
Additional file 3 of Genome sequencing, annotation and exploration of the SO2-tolerant non-conventional yeast Saccharomycodes ludwigii
Creators: name: Tavares, Maria J.
name: Güldener, Ulrich
name: Mendes-Ferreira, Ana
name: Mira, Nuno P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3 Original PFGE gel used in the karyotyping of the S. ludwigii UTAD17 strain (original image from the one shown in Fig. 1).
OB00085 - Katni Copper Plates of Maharaja Jayanatha, plate 2
Creators: name: Gai, G. S.
Publisher: name: Zenodo
Year: 2019

description: Katni copper-plates of mahārāja Jayanātha, plate 2 The plate is one of a set of three, is not from Katni itself, but reported to have been recovered at Uchahara, the ancient Uccakalpa, in Satna district. Dated saṃvat 182 (circa 502 CE).
The Star Formation History of a Post-Starburst Galaxy Determined From Its Cluster Population
Creators: name: Chandar, Rupali
name: Mok, Angus
name: French, K. Decker
name: Smercina, Adam
name: Smith, John-David T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The recent star formation histories (SFHs) of post-starburst galaxies have been determined almost exclusively from detailed modeling of their composite star light. This has provided important but limited information on the number, strength, and duration of bursts of star formation. In this work, we present a direct and independent measure of the recent SFH of S12 (plate-mjd-fiber for SDSS 623-52051-207; designated EAS12 in Smercina et al. 2018) from its star cluster population. We detect clusters from high resolution, $UBR$ optical observations from HST, and compare their luminosities and colors with stellar population models to estimate the ages and masses of the clusters. No clusters younger than $\sim$70 Myr are found, indicating star formation shut off at this time. Clusters formed $\sim$120 Myr ago reach masses up to $\sim \mbox{few}\times10^7~M_{\odot}$, several times higher than similar age counterparts formed in actively merging galaxies like the Antennae and NGC 3256. We develop a new calibration based on known properties for 8 nearby galaxies to estimate the star formation rate (SFR) of a galaxy from the mass of the most massive cluster, $M_{\rm max}$. The cluster population indicates that S12 experienced an extremely intense but short-lived burst $\sim$120 Myr ago, with an estimated peak of $500^{+500}_{-250}~M_{\odot}~\mbox{yr}^{-1}$ and duration of $50\pm25$ Myr, one of the highest SFRs estimated for any galaxy in the nearby universe. Prior to the recent, intense burst, S12 was forming stars at a moderate rate of $\sim 3{-}5~M_{\odot}~\mbox{yr}^{-1}$, typical of spiral galaxies. However, the system also experienced an earlier burst approximately $1{-}3$ Gyr ago. While fairly uncertain, we estimate that the SFR during this earlier burst was $\sim20{-}30~M_{\odot}~\mbox{yr}^{-1}$, similar to the current SFR in the Antennae and NGC 3256.
description: 20 pages, 12 figures, 2 tables, accepted to ApJ
Διαπολιτισμική εκπαίδευση: Στάσεις και αναπαραστάσεις των αλβανών γονέων για το ελληνικό εκπαιδευτικό σύστημα
Creators: name: Μπαργιάμη, Ιωάννα Κεμάλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Διαπολιτισμική εκπαίδευση
Στάσεις και αναπαραστάσεις των αλβανών γονέων
Ελληνικό εκπαιδευτικό σύστημα
Multicultural education
Attitudes and representations of Albanian parents
Hellenic educational system

description: Στην παρούσα εργασία εξετάζεται η έννοια της διαπολιτισμικής εκπαίδευσης από την ιστορική, την εννοιολογική, την εκπαιδευτική και την κριτική σκοπιά, και ανιχνεύονται μέσω της εμπειρικής έρευνας και έχοντας ως θεωρητικό οικοδόμημα τη συστημική θεωρία του N. Luhmann, οι αναπαραστάσεις και οι στάσεις των αλβανών/ίδων γονέων για το ελληνικό εκπαιδευτικό σύστημα. Η εργασία αυτή αποτελείται από πέντε μέρη. Στο πρώτο μέρος θεωρείται η ιστορική εξέλιξη της διαπολιτισμικής εκπαίδευσης. Στο δεύτερο μέρος γίνεται μια προσπάθεια να εξηγηθούν τα στάδια από τα οποία διέρχεται κανείς για να καταλήξει από τις αναπαραστάσεις – στάσεις – στερεότυπα – προκαταλήψεις στις διακρίσεις. Σε αυτό το σημείο παρατίθεται η αυτοεικόνα των σύγχρονων αλβανών/ίδων και εκείνη που οι έλληνες/ίδες έχουν σχηματίσει για αυτούς/ες ως μετανάστες/τριες. Επιπλέον, στο μέρος αυτό εξετάζεται η γονική εμπλοκή βάσει συστημικών θεωριών και ο βαθμός εμπλοκής των αλβανών/ίδων γονέων στη σχολική ζωή των παιδιών τους σύμφωνα με πορίσματα ερευνών. Στο τρίτο μέρος επιχειρείται η ανασκευή των βασικών δομικών στοιχείων της θεωρίας του N. Luhmann. Στο τέταρτο μέρος παρατίθεται η μεθοδολογία της έρευνας και αναλύονται τα ερευνητικά δεδομένα. Τέλος, στο πέμπτο μέρος διατίθενται η περίληψη, η βιβλιογραφία και το παράρτημα.
description: In this project the concept of multicultural education is considered by historical, conceptual, educational and critical view, and also representations and attitudes of Albanian parents to Hellenic educational system are detected through empirical research and having the systemic theory as theoretical construction. The project consists of five parts. The first part is about the historical development of the multicultural education. The second part is an attempt to explain the stages by which someone pass through, in way to come from representations – attitudes – stereotypes – prejudices to discriminations. In this point the self – image of modern Albanians is given, like also the image that Greeks have formed about them as immigrants. Furthermore, in this part parental involvement is considered according systemic theories and the grade of Albanian parents’ involvement on their children school life is considered according to research findings. The third part is about the reformulating of Niklas Luhmann theory‘s essential components. The fourth part relates on research methodology and research data is analyzed. Finally, the fifth part includes abstract, bibliography and appendix.