cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Can we eliminate the youth prison? (And what should we replace it with?)
Creators: name: Schiraldi, Vincent N.
Publisher: name: Columbia University
Year: 2020
Subjects: Youth--Legal status, laws, etc.
Juvenile justice, Administration of
Criminal justice, Administration of
Prisons

description: Over the past two decades, the number of young people in youth prisons in United States has quietly declined by two-thirds. As it has done so, youth crime has continued to plummet nationally and in individual states with large declines in youth incarceration. Is this a signal that America can do without youth prisons at all? And, if so, what should we replace them with?
Structural Estimation of Matching Markets with Transferable Utility
Creators: name: Galichon, Alfred
name: Salanie, Bernard
Publisher: name: Columbia University
Year: 2020
Subjects: Economics
Marginal utility
Utility theory
Markets

description: We review recent advances in the estimation of matching models under transferable utility, with special emphasis on approaches that exploit the convexity of the problem when the joint surplus is separable.
Splitting a single Cooper-pair with microwave light
Creators: name: Lambert, N. J.
name: Edwards, M.
name: Esmail, A. A.
name: Pollock, F. A.
name: Barrett, S. D.
name: Lovett, B. W.
name: Ferguson, A. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We measure an aluminum superconducting double quantum dot and find that its electrical impedance, specifically its quantum capacitance, depends on whether or not it contains a single broken Cooper pair. In this way we are able to observe, in real time, the thermally activated breaking and recombination of Cooper pairs. Furthermore, we apply external microwave light and break single Cooper pairs by the absorption of single microwave photons.
description: 13 pages, 4 figures
title: Αρχιτεκτονική και υλοποίηση σε αναδιατασσόμενη λογική του αλγόριθμου MAFFT για συνένωση κομματιών DNA
Creators: name: Δεσάρτη Αθηνά
Publisher: name: Technical University of Crete
Year: 2009

description: Μη διαθέσιμο
Tau-functions for Quiver Gauge Theories
Creators: name: Marshakov, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The prepotentials for the quiver supersymmetric gauge theories are defined as quasiclassical tau-functions, depending on two different sets of variables: the parameters of the UV gauge theory or the bare compexified couplings, and the vacuum condensates of the theory in IR. The bare couplings are introduced as periods on the UV base curve, and the consistency of corresponding gradient formulas for the tau-functions is proven using the Riemann bilinear relations. It is shown, that dependence of generalised prepotentials for the quiver gauge theories upon the bare couplings turns to coincide with the corresponding formulas for the derivatives of tau-functions for the isomonodromic deformations. Computations for the SU(2) quiver gauge theories with bi- and tri-fundamental matter are performed explicitly and analysed in the context of 4d/2d correspondence.
description: 26 pages; exposition revised, references added, version to appear in JHEP
A simplified pore-scale model for slow drainage including film-flow effects
Creators: name: Reis, Paula
name: Moura, Marcel
name: Linga, Gaute
name: Rikvold, Per Arne
name: Flekkøy, Eirik Grude
name: Måloy, Knut Jørgen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Film flow through networks of corners and capillary bridges can establish connections between seemingly isolated clusters during drainage in porous media. Coupled with drainage through the bulk of pores and throats, the flow through these networks constitutes a secondary drainage mechanism that can significantly affect fluid configurations and residual saturations. In order to investigate the prevalence of this drainage mechanism, we propose a quasi-static pore-network model based on modifying the trapped-cluster-identification algorithm in an invasion-percolation model. With the modification, wetting-phase connectivity could be provided by direct successions of pores and throats, represented by sites and bonds, as well as by chains of interconnected capillary bridges. The advancement of the fluid interface in the porous matrix was determined by the bonds' invasion thresholds, calculated based on local capillary pressure values that could be perturbed to accommodate gravitational effects. With the proposed model, experimentally verified phenomena related to slow drainage in granular porous media were reproduced, showing good qualitative agreement.
description: 24 pages, 15 figures
Neue Forschungen an der römischen Eifelwasserleitung
Creators: name: Fremersdorf, Fritz
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 134 (1929): Bonner Jahrbücher : Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
Altchristliche Gegenstände aus Köln
Creators: name: Lückger, Hermann Josef
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 135 (1930): Bonner Jahrbücher : Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
Peter Goeßler, Der Silberring von Trichtingen. Festschrift der Archäologischen Gesellschaft zu Berlin zur Feier des hundertjährigen Bestehens des arch. Instituts des deutschen Reiches am 21. April 1929
Creators: name: Lehner, Hans
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Peter Goeßler, Der Silberring von Trichtingen. Festschrift der Archäologischen Gesellschaft zu Berlin zur Feier des hundertjährigen Bestehens des arch. Instituts des deutschen Reiches am 21. April 1929. Mit 4 Tafeln und 28 Abbildungen im Text. Berlin und Leipzig. W. de Gruyter & Co. 1929. 36 S. 4°. 14 RM.
description: Bonner Jahrbücher, Bd. 135 (1930): Bonner Jahrbücher : Jahrbücher des Vereins von Altertumsfreunden im Rheinlande
New pseudo-planar binomials in characteristic two and related schemes
Creators: name: Hu, Sihuang
name: Li, Shuxing
name: Zhang, Tao
name: Feng, Tao
name: Ge, Gennian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Planar functions in odd characteristic were introduced by Dembowski and Ostrom in order to construct finite projective planes in 1968. They were also used in the constructions of DES-like iterated ciphers, error-correcting codes, and signal sets. Recently, a new notion of pseudo-planar functions in even characteristic was proposed by Zhou. These new pseudo-planar functions, as an analogue of planar functions in odd characteristic, also bring about finite projective planes. There are three known infinite families of pseudo-planar monomial functions constructed by Schmidt and Zhou, and Scherr and Zieve. In this paper, three new classes of pseudo-planar binomials are provided. Moreover, we find that each pseudo-planar function gives an association scheme which is defined on a Galois ring.
description: Replaced the term "planar" with "pseudo-planar"; revised argument in section 3
title: Εύρεση και αντιμετώπιση ευάλωτου κώδικα για επιθέσεις Buffer Overflow και Format String
title: Finding and troubleshooting code vulnerable to Buffer Overflow and Format String attacks
Creators: name: Κρικοριαν Αρμαν
Publisher: name: Technical University of Crete
Year: 2017

description: Η Διπλωματική Εργασία αυτή έχει σαν θέμα την ασφάλεια των υπολογιστικών συστημάτων. Παρουσιάζει τις
πιο διαδεδομένες επιθέσεις της σημερινής εποχής επισημαίνοντας τις συνέπειες ,τους τρόπους εκτέλεσής
τους, καθώς και τρόπους προστασίας από αυτές. Επιπλέον περιγράφει και αναλύει τις επιθέσεις Buffer
Overflow και Format String και τους τρόπους αντιμετώπισής τους. Επιπρόσθετα, παρουσιάζεται ένας
μηχανισμός που έχει υλοποιηθεί στα πλαίσια της εργασίας αυτής που έχει σαν σκοπό την εύρεση και
αντιμετώπιση ευάλωτου κώδικα για επιθέσεις Buffer Overflow και Format String. Τέλος, οι μέθοδοι που
χρησιμοποιεί ο μηχανισμός αυτός αναλύονται και αξιολογούνται.
Mourning online faculty: Creating communities of bereavement through virtual memorial services
Creators: name: Marquart, Matthea S.
name: Sofka, Carla
Publisher: name: Columbia University
Year: 2020
Subjects: Social work education
Distance education
Mourning customs
Classroom environment--Social aspects

description: Presentation for the Council on Social Work Education's 66th Annual Program Meeting. As online social work education expands, programs need ways to support geographically dispersed communities when faculty members pass. This workshop will describe the role of technology in creating digital legacies, identify ways to support online communal grieving, and share a virtual memorial service that provides an example for other programs. At the completion of this workshop, participants should be able to: **Describe the social media mourning model and how it can be modified to include communal grieving that occurs in an online learning community when a member of that communities dies; **Define disenfranchised grief, the concept of a digital legacy, second loss, and provide examples of these concepts; **Identify strategies that can be used to facilitate commemoration of a deceased faculty member and opportunities for communal grieving among colleagues and students in an online learning community.
Non-intrusive data-driven reduced-order modeling for time-dependent parametrized problems
Creators: name: Duan, Junming
name: Hesthaven, Jan S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Reduced-order models are indispensable for multi-query or real-time problems. However, there are still many challenges to constructing efficient ROMs for time-dependent parametrized problems. Using a linear reduced space is inefficient for time-dependent nonlinear problems, especially for transport-dominated problems. The non-linearity usually needs to be addressed by hyper-reduction techniques, such as DEIM, but it is intrusive and relies on the assumption of affine dependence of parameters. This paper proposes and studies a non-intrusive reduced-order modeling approach for time-dependent parametrized problems. It is purely data-driven and naturally split into offline and online stages. During the offline stage, a convolutional autoencoder, consisting of an encoder and a decoder, is trained to perform dimensionality reduction. The encoder compresses the full-order solution snapshots to a nonlinear manifold or a low-dimensional reduced/latent space. The decoder allows the recovery of the full-order solution from the latent space. To deal with the time-dependent problems, a high-order dynamic mode decomposition (HODMD) is utilized to model the trajectories in the latent space for each parameter. During the online stage, the HODMD models are first utilized to obtain the latent variables at a new time, then interpolation techniques are adopted to recover the latent variables at a new parameter value, and the full-order solution is recovered by the decoder. Some numerical tests are conducted to show that the approach can be used to predict the unseen full-order solution at new times and parameter values fast and accurately, including transport-dominated problems.
description: 32 pages, 17 figures
title: Outlier detection using Spark Streaming
title: Ανίχνευση δεδομένων άτυπης συμπεριφοράς με το σύστημα Spark Streaming
Creators: name: Ψαρακης Κυριακος
Publisher: name: Technical University of Crete
Year: 2017

description: Data is continuously being generated from sources such as machines, network traffic, sensor networks, etc. Timely and accurate detection of outliers in massive data streams has important applications such as in preventing machine failures, intrusion detection, and financial fraud detection. In this thesis, we implement an outlier detection algorithm inside the Spark Streaming environment that, makes only one pass over the data while utilizing limited storage. We chose the Spark Streaming environment because it offers scalable, high-throughput, fault-tolerant stream processing of live data streams. The algorithm adapts ideas from matrix sketching to maintain a set of few orthogonal vectors that form a good approximate basis for all the observed data. Using this constructed orthogonal basis, outliers in new incoming data are detected based on a simple reconstruction error test. Additionally, we have implemented two methods for updating the orthogonal vectors one deterministic and one randomized to further speedup the algorithm with a small cost to accuracy.
Symbolic hunt of instabilities and bifurcations in reaction networks
Creators: name: Vassena, Nicola
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 92C42, 34C23, 37N25, 37G10,

description: The localization of bifurcations in large parametric systems is still a challenge where the combination of rigorous criteria and informal intuition is often needed. With this motivation, we address symbolically the Jacobian matrix of reaction networks with general kinetics. More specifically, we consider any nonzero partial derivative of a reaction rate as a free positive symbol. The main tool are the Child-Selections: injective maps that associate to a species $m$ a reaction $j$ where $m$ participates as reactant. Firstly, we employ a Cauchy-Binet analysis and we structurally express any coefficient of the characteristic polynomial of the Jacobian in terms of Child-Selections. In particular, we fully characterize sign-changes of any of the coefficients. Secondly, we prove that the (in)stability of the Jacobian is inherited from the (in)stability of simpler submatrices identified by the Child-Selections. Thirdly, we provide sufficient conditions for purely imaginary eigenvalues of the Jacobian, hinting at Hopf bifurcation and oscillatory behavior. All conditions are in terms of signs of integer stoichiometric submatrices identified by the Child-Selections {and do not require any Hurwitz-type computaton}. Finally, we focus on systems endowed with Michaelis-Menten kinetics and we show that any symbolic realization of the Jacobian matrix can be achieved at a fixed equilibrium by a proper choice of the kinetic constants.
description: 29 pages, 3 figures
A Universal Description of Stochastic Oscillators
Creators: name: Pérez-Cervera, Alberto
name: Gutkin, Boris
name: Thomas, Peter J.
name: Lindner, Benjamin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Many systems in physics, chemistry and biology exhibit oscillations with a pronounced random component. Such stochastic oscillations can emerge via different mechanisms, for example linear dynamics of a stable focus with fluctuations, limit-cycle systems perturbed by noise, or excitable systems in which random inputs lead to a train of pulses. Despite their diverse origins, the phenomenology of random oscillations can be strikingly similar. Here we introduce a nonlinear transformation of stochastic oscillators to a new complex-valued function $Q^*_1(\textbf{x})$ that greatly simplifies and unifies the mathematical description of the oscillator's spontaneous activity, its response to an external time-dependent perturbation, and the correlation statistics of different oscillators that are weakly coupled. The function $Q^*_1(\textbf{x})$ is the eigenfunction of the Kolmogorov backward operator with the least negative (but non-vanishing) eigenvalue $λ_1=μ_1+iω_1$. The resulting power spectrum of the complex-valued function is exactly given by a Lorentz spectrum with peak frequency $ω_1$ and half-width $μ_1$; its susceptibility with respect to a weak external forcing is given by a simple one-pole filter, centered around $ω_1$; and the cross-spectrum between two coupled oscillators can be easily expressed by a combination of the spontaneous power spectra of the uncoupled systems and their susceptibilities. Our approach makes qualitatively different stochastic oscillators comparable, provides simple characteristics for the coherence of the random oscillation, and gives a framework for the description of weakly coupled oscillators.
Scaling of errors in digitized counterdiabatic driving
Creators: name: Hatomura, Takuya
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study errors caused by digitization of shortcuts to adiabaticity by counterdiabatic driving. We find possibility of error scaling $\mathcal{O}(M^{-2})$ with the number of time slices $M$, whereas worse error scaling $\mathcal{O}(M^{-1})$ is predicted in the conventional theory of the first-order Suzuki-Trotter decomposition. We point out this possibility by considering a state-dependent error bound and confirm emergence of this error scaling $\mathcal{O}(M^{-2})$ by numerical simulation. Moreover, we numerically show that intermediate error scaling can be observed in digitization of approximate counterdiabatic driving. These results reveal usefulness of digitized counterdiabatic driving from the viewpoints of both cost and performance.
$\mathcal{PT}$-symmetric, non-Hermitian quantum many-body physics -- a methodological perspective
Creators: name: Meden, Volker
name: Grunwald, Lukas
name: Kennes, Dante M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We review the methodology to theoretically treat parity-time- ($\mathcal{PT}$-) symmetric, non-Hermitian quantum many-body systems... (For the full abstract see paper)
description: 56 pages, 12 figures. Published version with updated references
title: Πλοήγηση σε εσωτερικούς χώρους με χρήση αισθητήρων στο υπολογιστικό νέφος
title: Indoors navigation using sensors on the cloud
Creators: name: Κωνσταντοπουλος Παναγιωτης
Publisher: name: Technical University of Crete
Year: 2017

description: Αξιοποιώντας τις τεχνολογίες του Υπολογιστικού Νέφους και του Διαδικτύου των Πραγμάτων, υλοποιήσαμε ένα σύστημα πλοήγησης σε εσωτερικούς χώρους κτηρίων. Αισθητήρες ανίχνευσης προσέγγισης τοποθετούνται σε κάθε χώρο του κτηρίου. Κάνοντας χρήση του πρωτοκόλλου ασύρματης συνδεσιμότητας BLE (Bluetooth Low Energy) τα κινητά τηλέφωνα των επισκεπτών είναι σε θέση να προσδιορίσουν την απόστασή τους από τον κάθε αισθητήρα. Μέσω ειδικής εφαρμογής για το τηλέφωνο, η πληροφορία αυτή αποστέλλεται στο Υπολογιστικό Νέφος όπου υπολογίζεται η διαδρομή που πρέπει να ακολουθηθεί. Οι οδηγίες πλοήγησης εν συνεχεία αποστέλλονται πίσω στην εφαρμογή, από όπου και προβάλλονται από τη συσκευή του χρήστη. Παράλληλα, αναπτύξαμε και ένα ολοκληρωμένο σύστημα διαχείρισης, προσβάσιμο μέσω διαδικτυακής διεπαφής. Μεταξύ των άλλων η διαδικτυακή εφαρμογή περιλαμβάνει: Παραχώρηση αδειών πρόσβασης σε επιλεγμένους χώρους ανά χρήστη, παρακολούθηση σε πραγματικό χρόνο της πλήρους δραστηριότητας ανά επισκέπτη και ανά χώρο, επικοινωνία μέσω μηνυμάτων ανάμεσα σε χρήστες και διαχειριστή, καθώς και εξατομικευμένες ειδοποιήσεις σε περίπτωση εσφαλμένης πορείας.
description: Taking advantage of Cloud Computing and Internet of Things technologies, we created an indoors navigation system that runs on the cloud and supports communication with user's mobile devices. Proximity detection sensors are placed in every location of the building. Using the wireless connectivity BLE (Bluetooth Low Energy) protocol, supported by the majority of smart devices, the visitors’ smartphones are capable of estimating their distance from these sensors. Making use of a specially designed mobile application, this information is sent to the cloud, where the computation of the desired route take place. The navigation instructions are then sent back to the user’s device, where they are displayed by the mobile application. Furthermore, we have also developed a complete administration system, accessible via web interface. Besides the above, the following functionality is supported as well: providing access permissions in selected indoors areas per user, real time monitoring of areas’ and users’ activity, communication with the administrator by exchanging messages and individual notifications in case of user’s disorientation.
K-Oscillons: Oscillons with Non-Canonical Kinetic Terms
Creators: name: Amin, Mustafa A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Oscillons are long-lived, localized, oscillatory scalar field configurations. In this work we derive a condition for the existence of small-amplitude oscillons (and provide solutions) in scalar field theories with non-canonical kinetic terms. While oscillons have been studied extensively in the canonical case, this is the first example of oscillons in scalar field theories with non-canonical kinetic terms. In particular, we demonstrate the existence of oscillons supported solely by the non-canonical kinetic terms, without any need for nonlinear terms in the potential. In the small-amplitude limit, we provide an explicit condition for their stability in d+1 dimensions against long-wavelength perturbations. We show that for d > 2, there exists a long-wavelength instability which can lead to radial collapse of small-amplitude oscillons.
description: references added, minor changes in text, published in Phys. Rev. D
Enumeration of bipartite graphs and bipartite blocks
Creators: name: Gainer-Dewar, Andrew
name: Gessel, Ira M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15, 05C30

description: Using the theory of combinatorial species, we compute the cycle index for bipartite graphs, which we use to count unlabeled bipartite graphs and bipartite blocks.
title: One-step procedure for the preparation of functional polysaccharide/fatty acid multilayered coatings
Creators: name: Micciulla, Samantha
name: Hayward, Dominic W.
name: Gerelli, Yuri
name: Panzarella, Alain
name: Klitzing, Regine von
name: Gradzielski, Michael
name: Chiappisi, Leonardo
Publisher: name: Springer Nature
Year: 2021

description: Soft, stratified, amphiphilic systems are recurrent motifs in nature, e.g., in myelin sheaths or thylakoid stacks, and synthetic analogues are increasingly being exploited in the areas of biocatalysis, biosensing, and drug delivery. The synthesis of such complex multilayered systems usually requires lengthy preparation protocols. Here, we demonstrate the formation of multilayered fatty acid/polysaccharide thin films prepared via a single step protocol, which exploits the spontaneous self-assembly of the components into vesicular systems in aqueous solution. The solutions are characterized by light and neutron scattering experiments and the thin films by neutron reflectometry, optical ellipsometry, atomic force microscopy, and x-ray diffraction. The thin films exhibit structural features with sub-10 nm dimensions, stemming from the ordered sequence of hydrophilic and hydrophobic layers and respond strongly to changes in ambient humidity. Using this approach, films with a total thickness varying from tens to hundreds of nanometers can be easily prepared.
Efficient tools for quantum metrology with uncorrelated noise
Creators: name: Kolodynski, Jan
name: Demkowicz-Dobrzanski, Rafal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum metrology offers an enhanced performance in experiments such as gravitational wave-detection, magnetometry or atomic clocks frequency calibration. The enhancement, however, requires a delicate tuning of relevant quantum features such as entanglement or squeezing. For any practical application the inevitable impact of decoherence needs to be taken into account in order to correctly quantify the ultimate attainable gain in precision. We compare the applicability and the effectiveness of various methods of calculating the ultimate precision bounds resulting from the presence of decoherence. This allows us to put a number of seemingly unrelated concepts into a common framework and arrive at an explicit hierarchy of quantum metrological methods in terms of the tightness of the bounds they provide. In particular, we show a way to extend the techniques originally proposed in Demkowicz-Dobrzanski et al 2012 Nat. Commun. 3 1063, so that they can be efficiently applied not only in the asymptotic but also in the finite-number of particles regime. As a result, we obtain a simple and direct method, yielding bounds that interpolate between the quantum enhanced scaling characteristic for small number of particles and the asymptotic regime, where quantum enhancement amounts to a constant factor improvement. Methods are applied to numerous models including noisy phase and frequency estimation, as well as the estimation of the decoherence strength itself.
description: 35 pages, 3 figures, 4 tables, to appear in New Journal of Physics
Ziegelstempel der 8. Legion aus Osterburken, Kastellbad II
Creators: name: Baatz, Dietwulf
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2017

description: [nicht vorhanden / not available]
description: Fundberichte aus Baden-Württemberg, Bd. 13 (1988): Fundberichte aus Baden-Württemberg
title: City-wide rooftop networking
Creators: name: Οικονομακος Παναγιωτης
Publisher: name: Technical University of Crete
Year: 2017

description: Mesh (802.11s) networks are inherently resource constrained, in terms of transmission power, as well as bandwidth. It is essential to formulate coloring schemes that explicitly protect sensitive links. This work offers a coloring algorithm that protects specific links from interference, using network planner-defined weights. The network consists of nodes that accommodate a variable number of 802.11s radio interfaces, with different kinds of directive antennas, targeting city-wide deployments. The proposed algorithm is applied to a carefully crafted conflict graph, with merged vertices that share common radio interfaces. Semidefinite programming (SDP) is used to approximate the chromatic number of the conflict graph. Evaluation is performed both in terms of simulation in modified NS3 (to accommodate multiple directive radio interfaces per node), as well as experimental results across a city-wide deployment; the greater area of Chania city is covered, spanning ranges in the order of 5.5 km. It is demonstrated that the proposed link protection methodology outperforms prior art that avoids protecting specific links; improvements are observed both in terms of average, as well as minimum (worst-case) throughput. Such quality-of-service (QoS) improvement is a key attribute in critical applications and may be deemed crucial in practical, city-wide, rooftop networking.
Saathafer (Avena sativa L.) und Flughafer (A. fatua L.) sowie die Deutung der Zwischenformen in einem Vorratsfund aus dem 1. Jahrhundert n. Chr. im Vergleich mit heutigen Formen
Creators: name: Körber-Grohne, Udelgard
name: Bickelmann, Ulrike
name: Leist, Norbert
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2017

description: [nicht vorhanden / not available]
description: Fundberichte aus Baden-Württemberg, Bd. 13 (1988): Fundberichte aus Baden-Württemberg
Sport Analytics
Creators: name: นภดล ร่มโพธิ์
Publisher: name: คณะพาณิชยศาสตร์และการบัญชี มหาวิทยาลัยธรรมศาสตร์
Year: 2014
Subjects: Sport Analytics

description: วารสารบริหารธุรกิจ JBA, 37, 141 (ม.ค.-มี.ค. 57), 91
Khorasan X. History in the Safavid and Afsharid Period
Creators: name: Ghereghlou, Kioumars
Publisher: name: Columbia University
Year: 2020
Subjects: History
Ṣafavid Dynasty (Iran)

description: This article, originally published in the print version of the Encyclopaedia Iranica (vol. XVI/fascicle 6), explores the history of the Iranian province of Khorasan from the beginning of the 16th to the middle of the 18th century. Drawing mainly on court chronicles and archival materials from the period, it synthesizes a detailed account of the province's political history under the Safavids (r. 1501-1735). The article closes with an account of events and trends in Khorasan under the Afsharid Nader Shah (r. 1735-1747) and his immediate successors.
Polarized Charginos (and Tops) in Stop Decays
Creators: name: Low, Ian
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Current searches for direct production of scalar top quarks, or stops, in supersymmetry focus on their decays into W boson + b quark + neutralino by way of top + neutralino and bottom + chargino. While the polarization of the top quark depends on the stop mixing, the chargino turns out to be fully polarized when the bottom Yukawa coupling can be neglected relative the top Yukawa coupling. We compute the energy and angular spectra of the charged lepton in the chargino channel, which could serve as the spin-analyzer of the chargino. In addition, we demonstrate the top polarization could have a significant impact on the selection efficiencies in direct stop samples at the LHC, while the effect from the chargino polarization is less pronounced. Two observables in the laboratory frame, the opening angle between the charged lepton and the b quark and the energy of the b quark, are also proposed to optimize searches in the chargino channel versus the top channel.
description: 17 pages, 5 figures; v2: minor improvements, references added, typos corrected, matched to PRD version
Ein weiterer Baustein der 22. Legion aus Osterburken, Neckar-Odenwald-Kreis
Creators: name: Wesch-Klein, Gabriele
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2017

description: [nicht vorhanden / not available]
description: Fundberichte aus Baden-Württemberg, Bd. 13 (1988): Fundberichte aus Baden-Württemberg
Teofilus aus Waldmühlbach, Gde. Billigheim, Neckar-Odenwald-Kreis
Creators: name: Wiegels, Rainer
Publisher: name: Fundberichte aus Baden-Württemberg
Year: 2017

description: [nicht vorhanden / not available]
description: Fundberichte aus Baden-Württemberg, Bd. 13 (1988): Fundberichte aus Baden-Württemberg
Current Data Gaps in Modeling Essential Worker Absenteeism Due to COVID-19
Creators: name: White, Zachery
name: Schlegelmilch, Jeffrey
name: Ratner, Jacqueline J.
name: Saxena, Gunjan
name: Wongsodirdjo, Kevin S.
name: Aguilar, Susanna
name: Kushner, Daniel
name: Ortega, Jim
name: Paaso, Aleksi
name: Bahramirad, Shay
Publisher: name: Columbia University
Year: 2020
Subjects: COVID-19 (Disease)
Absenteeism (Labor)
Absenteeism (Labor)--Mathematical models
Epidemics

description: With the uncertain physical and mental health implications of COVID-19 infection, companies have taken a myriad of actions that aim to reduce the risk of employees contracting the virus, with most grounded in reducing or eliminating in-person interactions. Our preliminary analysis indicates that while there is some data to support modelling absenteeism, there are gaps in the available evidence, requiring the use of assumptions that limit precision and efficacy for decision support. Improved data on time-to-recovery after hospitalization, absenteeism due to family or other household member illness, and mental health’s impact on returning to work will support the development of more robust absenteeism models and analytical approaches.
Secondary Eclipse Photometry of the Exoplanet WASP-5b with Warm Spitzer
Creators: name: Baskin, Nathaniel J.
name: Knutson, Heather A.
name: Burrows, Adam
name: Fortney, Jonathan J.
name: Lewis, Nikole K.
name: Agol, Eric
name: Charbonneau, David
name: Cowan, Nicolas B.
name: Deming, Drake
name: Desert, Jean-Michel
name: Langton, Jonathan
name: Laughlin, Gregory
name: Showman, Adam P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present photometry of the extrasolar planet WASP-5b in the 3.6 and 4.5 micron bands taken with the Spitzer Space Telescope's Infrared Array Camera as part of the extended warm mission. By examining the depth of the planet's secondary eclipse at these two wavelengths, we can place joint constraints on the planet's atmospheric pressure-temperature profile and chemistry. We measure secondary eclipse depths of 0.197% +/- 0.028% and 0.227% +/- 0.025% in the 3.6 micron and 4.5 micron bands, respectively. Our observations are best matched by models showing a hot dayside and, depending on our choice of model, a weak thermal inversion or no inversion at all. We measure a mean offset from the predicted center of eclipse of 0.078 +/- 0.032 hours, translating to ecos(omega) = 0.0031 +/- 0.0013 and consistent with a circular orbit. We see no evidence for any eclipse timing variations comparable to those reported in a previous transit study.
description: 5 pages, 5 figures, ApJ in press
The Small Big
Creators: name: นภดล ร่มโพธิ์
Publisher: name: คณะพาณิชยศาสตร์และการบัญชี มหาวิทยาลัยธรรมศาสตร์
Year: 2021
Subjects: The Small Big

description: วารสารบริหารธุรกิจ JBA, 44, 170 (เม.ย.-มิ.ย. 64), 78
Boundaries for efficient use of electron vortex beams to measure magnetic properties
Creators: name: Rusz, Jan
name: Bhowmick, Somnath
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Development of experimental techniques for characterization of magnetic properties at high spatial resolution is essential for progress in miniaturization of magnetic devices, for example, in data storage media. Inelastic scattering of electron vortex beams (EVB) was recently reported to contain atom-specific magnetic information. We have developed a theoretical description of inelastic scattering of EVB on crystals and performed simulations for EVB of different diameters. We show that use of an EVB wider than an interatomic distance does not provide any advantage over an ordinary convergent beam without angular momentum. On the other hand, in the atomic resolution limit, electron energy loss spectra measured by EVB are strongly sensitive to the spin and orbital magnetic moments of studied matter, when channeling through or very close to the atomic columns. Our results demonstrate the boundaries for efficient use of EVB in measurement of magnetic properties.
description: 5 pages, 4 figures
title: Ασφαλή ερωτήματα σημείου στο σύστημα CryptDB
title: Secure point queries in CryptDB
Creators: name: Μαντωνανακη Χριστινα
Publisher: name: Technical University of Crete
Year: 2017

description: Στην παρούσα διπλωματική εργασία εξετάστηκε ο τρόπος αναζήτησης ερωτημάτων σημείου (Point queries) πάνω στα δεδομένα που έχουν ανατεθεί σε ένα μη-αξιόπιστο διακομιστή (Server). Αρχικά, παρουσιάστηκε το σύστημα CryptDB και η λειτουργικότητα του, ενώ στη συνέχεια η Searchable Symmetric Encryption (SSE) τεχνική. Έτσι, εξετάστηκε το κατά  πόσο μπορεί να τροποποιηθεί αυτό το σύστημα και να υποστηρίζει την τεχνική SSE. Επιπλέον, παρουσιάζονται οι τροποποιήσεις στην αρχιτεκτονική, την εισαγωγή δεδομένων και την εκτέλεση των ερωτημάτων. Η προσαρμογή του SSE στο CryptDB έγινε διότι, η κρυπτογράφηση που υποστήριζε point queries ερωτήματα στο σύστημα ήταν αποτελεσματική στις απαντήσεις της, αλλά είχε μη αποδεκτές διαρροές. Με αυτό τον τρόπο μπορούν να εκτελεστούν ερωτήματα point queries, χωρίς να αποκαλύπτεται η συχνότητα των κρυπτογραφημένων δεδομένων, καθώς με την κρυπτογράφηση DET δυο κείμενα (plaintext) είχαν ίδιο κρυπτογραφημένο κείμενο. Στην υλοποίηση της εργασίας μπορεί να θεωρηθεί οποιαδήποτε τεχνική SSE ως ένα μαύρο κουτί, και το αρχείο (file) να μετατραπεί σε πλειάδα (tuple), ενώ η λέξη κλειδί (keyword) σε δεδομένα του tuple. Επομένως, το σύστημα αυτό θα μπορέσει να λειτουργήσει αποτελεσματικά στην απάντηση point queries.
title: Βιομηχανικοί οικισμοί τους χθες και η εξέλιξή τους σήμερα
title: Industrial settlements, then and now
Creators: name: Μπελερη Δημητρα
Publisher: name: Technical University of Crete
Year: 2019

description: Στόχος της ερευνητικής εργασίας είναι η διερεύνηση της σχέσης της πόλης με την παραγωγική διαδικασία και  πώς αυτή η σχέση μεταλλάσσεται, διαχρονικά, ανάλογα με τους τρόπους παραγωγής, την οργάνωση. Αντικείμενο της εργασίας είναι η διερεύνηση των χωρικών  αλλαγών που προκαλούνται από τις μεταβολές αυτές  στη διάρθρωση του αστικού χώρου. Το ιστορικό πλαίσιο της έρευνας ξεκινάει με τη Βιομηχανική Επανάσταση η οποία  προκάλεσε τον μεγαλύτερο μετασχηματισμό στο χώρο της εργασίας και φτάνει μέχρι τις μέρες μας με έμφαση στο φαινόμενο της ανάπλασης και αλλαγής χρήσης βιομηχανικών περιοχών και κτηρίων.
Η  ερευνητική εργασία περιλαμβάνει τη μελέτη των θεωρητικών αρχών που αναπτύχθηκαν κατά το τέλος του 18ου αι.- αρχές 19ου. και 20ου αι. επηρέασαν τον πολεοδομικό σχεδιασμό περιοχών, οι οποίες είτε δημιουργήθηκαν, είτε επηρεάστηκαν από την ύπαρξη κάποιας βιομηχανικής μονάδας. Στη συνέχεια γίνεται ανάλυση βιομηχανικών οικισμών, οι οποίοι τοποθετούνται κυρίως στο γεωγραφικό πλαίσιο της υπαίθρου, με σκοπό την διερεύνηση της αλλαγής που επήλθε με το τέλος της βιομηχανικής εποχής και την επακόλουθη αλλαγή της παραγωγικής διαδικασίας, αλλά και του τρόπου αναζωογόνησης τους υπό τα νέα δεδομένα.
Higgs boson mass in NMSSM with right-handed neutrino
Creators: name: Wang, Wenyu
name: Yang, Jin Min
name: You, Lin Lin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In order to have massive neutrinos, the right-handed neutrino/sneutrino superfield ($N$) need to be introduced in supersymmetry. In the framework of NMSSM (the MSSM with a singlet $S$) such an extension will dynamically lead to a TeV-scale Majorana mass for the right-handed neutrino through the $SNN$ coupling when $S$ develops a vev (the free Majorana mass term is forbidden by the assumed $Z_3$ symmetry). Also, through the couplings $SNN$ and $SH_uH_d$, the SM-like Higgs boson (a mixture of $H_u$, $H_d$ and $S$) can naturally couple with the right-handed neutrino/sneutrino. As a result, the TeV-scale right-handed neutrino/sneutrino may significantly contribute to the Higgs boson mass. Through an explicit calculation, we find that the Higgs boson mass can indeed be sizably altered by the right-handed neutrino/sneutrino. Such new contribution can help to push up the SM-like Higgs boson mass and thus make the NMSSM more natural.
description: 18 pages, 8 figures, major changes, reference added, version in JHEP
SPR/INTEROP-OSED
Creators: name: Claramunt Puchol, Cecilia
name: Vera Vélez, Norberto
name: Morcillo Pallarés, Pablo Antonio
name: Martín Marrero, David
name: Ivanki, Naghmeh
name: Chuquitarco Jiménez, carlos
name: Madeira, Henrique
name: Balbastre-Tejedor, Juan Vicente
Publisher: name: Zenodo
Year: 2022
Subjects: U-space
UTM
Drone
UAS
Separation management
Separation Minina
OSED
Interop

description: This document describes the operational services and environment description for the provision of separation between unmanned and unmanned aircraft in any airspace volume where U-space services are offered (like, but not only, the U-space airspace referred to by the CIR (EU) 2021/664). The document also defines ‘fit for purpose’ safety, performance and interoperability requirements needed to achieve a particular target level of safety. The document has been developed using the MEDUSA methodology, which is specific to perform risk assessments in the U-space. This methodology covers the success approach (risk mitigation by providing U-space services with a specific performance) and the failure approach (risks caused by abnormal conditions and system-generated faults) in a comprehensive way. The risk assessment specifically addresses the impact of Artificial Intelligence systems used to increase automation of operations in safety-critical applications.
title: [Α]συνεχή και αδ[ε]ιαμόρφωτα αστικά μέτωπα | επαναπροσδιορισμός του παλίμψηστου της Νέας Χώρας Χανίων

title: [Dis]continuous and [un]completed urban fronts redefining the topography of Nea Chora, Chania
Creators: name: Κωνσταντινη Αννα
Publisher: name: Technical University of Crete
Year: 2019

description: Με την ένωση της Κρήτης με την υπόλοιπη  Ελλάδα, το 1913 δημιουργείται η ανάγκη σύνδεσης της πόλης των Χανίων με εκτός των τειχών επεκτάσεις. Έτσι αρχίζει να εφαρμόζεται ρυμοτομία δυτικά, με τη Νέα Χώρα να αποκτά τα πρώτα επίσημα πολεοδομικά σχέδια. Παρόλα αυτά η σύγχρονη αστική εικόνα της διαμορφώνεται πολύ αργότερα, έπειτα από διαδοχικούς βομβαρδισμούς, επαναστάσεις και ανοικοδομήσεις. Το σύστημα των Ενετικών Οχυρώσεων με την αυστηρά γεωμετρική του χάραξη και τον επιβλητικό του όγκο, δημιουργεί ένα σημαντικό ορόσημο στο πολεοδομικό σύνολο της περιοχής, παρόλα αυτά σήμερα παίρνει τη μορφή ενός ανενεργού ιστορικά θύλακα. Η εμφανής έλλειψη οργανωμένου δημόσιου χώρου, αλλά και η υποβάθμιση του υφιστάμενου δομημένου σε μια περιοχή «μετάβασης» όπου συμβιώνουν αντιθετικά δίπολα, όπως τεχνητό-φυσικό, παλιό-νέο δομημένο-αδόμητο και ιδιωτικό-δημόσιο καθιστά επιτακτική την ανάγκη διαμόρφωσης μιας συνεκτικής εικόνας. Επιχειρείται λοιπόν, η ολοκλήρωση αυτού του «ενιαίου χαλιού συνεκτικότητας», με το άνοιγμα της περιοχής στα μέτωπά της, στοχεύοντας στην εξισορρόπηση, στην οριοθέτηση και τελικά στη σύνδεση Παλιάς Πόλης και Νέας Χώρας.
title: Οι ταφικές τιμές ως αντικατοπτρισμός της επίγειας ζωής: Μουσείο αρχαϊκής νεκρόπολης στο Δέλτα Φαλήρου
title: The honours to the dead as a symbolic reflection to the terrestrial life: Archaeological Museum of archaic cemetery in Phaleron
Creators: name: Μπασδεκη Ναταλια
name: Παππας Στεφανος
Publisher: name: Technical University of Crete
Year: 2019

description: Κατά τη διάρκεια ανέγερσής του Κ.Π.Σ.Ν (Κέντρο Πολιτισμού Σταύρος Νιάρχος) ανακαλύφθηκαν, σε όλη την έκταση του πάρκου (πρώην Ιππόδρομος Φαλήρου), αρχαιολογικά ευρήματα νεκρόπολης αρχαϊκής περιόδου. Ένα από τα ευρήματα αυτά, και το έναυσμα αυτής της διπλωματικής εργασίας, αποτέλεσαν τρεις πάγκοι από δεκάδες στοιχισμένους  σιδηροδέσμιους σκελετούς που καταδικάστηκαν σε θάνατο («Δεσμώτες»). Λόγω της ευθραυστότητας του ευρήματος αυτού και της αδυναμίας να μετακινηθεί σε άλλο σημείο, η περιοχή μελέτης της διπλωματικής εργασίας ορίζεται από το κύριο εύρημα και μέσα στα όρια της Εσπλανάδας του Κ.Π.Σ.Ν.
Η μελέτη αυτή πραγματεύεται τη δημιουργία ενός μουσείου που επιχειρεί να αποδώσει την διαβάθμιση των ταφικών τιμών της νεκρόπολης ως αντικατοπτρισμό της επίγειας ζωής. Παράλληλα, ερευνάται η σχέση του μουσείου και του θεατή με μία τόσο δραματική θεματολογία εκθεμάτων.
description: During the construction of S.N.F.C.C (Stavros Niarchos Foundation Cultural Center), archaeological findings of the archaic cemetery were discovered throughout the park (formerly Hippodrome of Phaleron). One of the main findings, which also gave rise to the initiation of this thesis, consisted of dozen of aligned iron-bearing skeletons condemned to death (“Desmotes” – from the Greek word “desma” which means shackles). Due to the fact that these findings are extremely fragile, their removal and transport to another place is prohibited. Hence, the study area of this thesis is defined by these findings within the limits of Esplanada.
This project deals with the creation of a museum that attempts to attribute honours to the dead of this cemetery asa symbolic reflection of terrestrial life. Furthermore, it is of great importance to our study, the correlation between the viewer and the exhibits, since their tense subject matter.
Suppression of local heat flux in a turbulent magnetized intracluster medium
Creators: name: Komarov, S.
name: Churazov, E.
name: Schekochihin, A.
name: ZuHone, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray observations of hot gas in galaxy clusters often show steeper temperature gradients across cold fronts -- contact discontinuities, driven by the differential gas motions. These sharp (a few kpc wide) surface brightness/temperature discontinuities would be quickly smeared out by the electron thermal conduction in unmagnetized plasma, suggesting significant suppression of the heat flow across the discontinuities. In fact, the character of the gas flow near cold fronts is favorable for suppression of conduction by aligning magnetic field lines along the discontinuities. We argue that a similar mechanism is operating in the bulk of the gas. Generic 3D random isotropic and incompressible motions increase the temperature gradients (in some places) and at the same time suppress the local conduction by aligning the magnetic field lines perpendicular to the local temperature gradient. We show that the suppression of the effective conductivity in the bulk of the gas can be linked to the increase of the frozen magnetic field energy density. On average the rate of decay of the temperature fluctuations $\mathrm{d}\langle δT^2 \rangle /\mathrm{d}t$ decreases as $\langle B^2 \rangle ^{-1/5}$.
description: 13 pages, 10 figures, published in MNRAS
The value proposition of the Global Health Security Index
Creators: name: Ravi, Sanjana J.
name: Warmbrod, Kelsey Lane
name: Mullen, Lucia
name: Meyer, Diane
name: Cameron, Elizabeth
name: Bell, Jessica
name: Bapat, Priya
name: Paterra, Michael
name: Machalaba, Catherine
name: Nath, Indira
name: Gostin, Lawrence O.
name: James, Wilmot Godfrey
name: George, Dylan
name: Nikkari, Simo
name: Gozzer, Ernesto
name: Tomori, Oyewale
name: Makumbi, Issa
name: Nuzzo, Jennifer B.
Publisher: name: Columbia University
Year: 2020
Subjects: Biosecurity
Communicable diseases
Medical policy--Evaluation
Public health

description: Some scholars have recently offered constructive critiques of the Global Health Security Index’s approach to scoring and ranking countries; its weighting of select indicators; its emphasis on transparency; its focus on biosecurity and biosafety capacities; and divergence between select country scores and corresponding COVID-19-associated caseloads, morbidity, and mortality. Here, we (1) describe the practical value of the GHS Index; (2) present potential use cases to help policymakers and practitioners maximise the utility of the tool; (3) discuss the importance of scoring and ranking; (4) describe the robust methodology underpinning country scores and ranks; (5) highlight the GHS Index’s emphasis on transparency and (6) articulate caveats for users wishing to use GHS Index data in health security research, policymaking and practice.