cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rio das Pedras. A Toolbox for Community Improvement
Creators: name: De Castro Mazarro, Alejandro
name: Tovar-Restrepo, Marcela
name: Altskan, Alexander
name: Book, Rebecca Rand
name: Fleisher, Hannah
name: George, Jessica
name: Groves, Laura
name: Liu, Chang
name: Smith, Da'Quallon
name: Sun, Xiaotian
name: Krassner, Anne
Publisher: name: Columbia University
Year: 2014
Subjects: City planning
Community development
Community development, Urban
Squatter settlements

description: This report is the product of a semester-long urban planning studio focused on the informal settlement of Rio das Pedras in Rio de Janeiro, Brazil. Our client, Studio-X Rio commissioned this studio as part a 'Rio das Pedras Initiative' to examine and characterize this community and put forth proposals for its advancement within the realm of urban planning. The result is an extensive exploration of the present economy, living conditions, and culture of Rio das Pedras and its role within the city of Rio de Janeiro, through the eyes of the stakeholders involved in shaping the community.
Hybrid simulations of the cusp and dayside magnetosheath dynamics under \ quasi-radial interplanetary magnetic fields
Creators: name: Ng, J.
name: Chen, L. J.
name: Omelchenko, Y.
name: Zhou, Y.
name: Lavraud, B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Under quasi-radial interplanetary magnetic fields (IMF), foreshock turbulence can have an impact on the magnetosheath and cusps depending on the location of the quasi-parallel shock. We perform three-dimensional simulations of Earth's dayside magnetosphere using the hybrid code HYPERS, and compare northward and southward quasi-radial IMF configurations. We study the magnetic field configuration, fluctuations in the magnetosheath and the plasma in the regions around the northern cusp. Under northward IMF with Earthward $B_x$, there is a time-varying plasma depletion layer immediately outside the northern cusp. In the southward IMF case, the impact of foreshock turbulence and high-speed jets, together with magnetopause reconnection, can lead to strong density enhancements in the cusp.
description: Accepted by JGR: Space physics
Right to the City: Housing and Community Development in Brazil
Creators: name: Irazabal Zurita, Clara E.
name: De Castro Mazarro, Alejandro
name: Arellano, Vicente
name: Escalante, Ubaldo
name: Jackson, Tristan
name: Khan, Maira
name: Prabhakaran, Krithika
name: Sun, Lu
name: Paty Diaz, Alejandra Guadalupe
Publisher: name: Columbia University
Year: 2016
Subjects: City planning
Community development, Urban
Housing
Housing policy--Social aspects
Social movements

description: This report contains research and proposals resulting from a semester-long study of the housing crisis in Brazil, as seen through the lens of urban social movements.The studio’s proposals and larger vision targets the upliftment of those worst affected by Brazil’s qualitative and quantitative housing shortage – those in the 1 to 3 minimum wage bracket, the lowest earning members in Brazilian society. Research is focused through the struggles of urban social movements who have been protesting and negotiating with the government for increased housing supply for decades. Using their needs and demands as a base of understanding ground realities for the poorest of the poor in Brazil, this studio went about its research.
Noise-induced topological transformations of vortex solitons in optical fibers filled with a cold atomic gas
Creators: name: Prokhorov, A. V.
name: Gladush, M. G.
name: Gubin, M. Yu.
name: Leksin, A. Yu.
name: Arakelian, S. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We consider the influence of optical and temperature-dependent atomic fluctuations on the formation and propagation of optical vortex solitons in dense media realized as hollow-core optical fibers filled with a cold atomic gas in presence of optical pumping. We show different perturbation-induced scenaria of complete destruction and smooth transformations of the topological characteristics of localized optical structures in hollow-core fiber. The maximum levels of optical and atomic fluctuations at which the soliton regime can be maintained has been determined. The estimates for these levels show an opportunity to observe the optical vortex solitions in the core-filling gas of the fiber for temperatures smaller than the critical temperature for Bose-Einstein condensate.
description: 12 pages, 10 EPS figures, submitted to Physical Review A
Robust inference of neutron-star parameters from thermonuclear burst observations
Creators: name: Galloway, D. K.
name: Johnston, Z.
name: Goodwin, A. J.
name: He, C. -C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Thermonuclear (type-I) bursts arise from unstable ignition of accumulated fuel on the surface of neutron stars in low-mass X-ray binaries. Measurements of burst properties in principle enable observers to infer the properties of the host neutron star and mass donors, but a number of confounding astrophysical effects contribute to systematic uncertainties. Here we describe some commonly-used approaches for determining system parameters, including composition of the burst fuel, and introduce a new suite of software tools, concord, intended to fully account for astrophysical uncertainties. Comparison of observed burst properties with the predictions of numerical models is a complementary method of constraining host properties, and the tools presented here are intended to make comprehensive model-observation comparisons straightforward. When combined with the extensive samples of burst observations accumulated by X-ray observatories, these software tools will provide a step-change in the amount of information that can be inferred about typical burst sources.
description: 22 pages, 11 figures, 1 table & 1 machine-readable table as supplementary data; submitted to ApJS. Accompanying software package available at https://github.com/outs1der/concord
title: Βιομιμητικές εφαρμογές στα οικιστικά σύνολα: οι προοπτικές συμβολής της φυσικής τεχνογνωσίας στην επίτευξη αειφόρου αστικού περιβάλλοντος
Creators: name: Χιου Αργυρω
Publisher: name: Technical University of Crete
Year: 2014

description: Η φύση αποτελεί ένα εκτεταμένο «εγχειρίδιο» βιολογικών μηχανισμών, που με το παράδειγμά τους, μπορούν να δώσουν διεξόδους σε πολλά σύγχρονα προβλήματα που οι ζωντανοί οργανισμοί έχουν ήδη καταφέρει να λύσουν μέσω της εξελικτικής διαδικασίας. Σκοπός της παρούσας ερευνητικής εργασίας είναι η παρουσίαση ενός εναλλακτικού τρόπου διαχείρισης της σχέσης δομημένου και φυσικού περιβάλλοντος υπό το πρίσμα της βιομίμησης. Με έμφαση στα οικιστικά σύνολα, γίνεται διερεύνηση τόσο των δυνατοτήτων, όσο και των ορίων αυτής της πρακτικής, καταλήγοντας σε συμπεράσματα ως προς το μέγεθος της χρησιμότητας αλλά και της εφαρμοσιμότητας της.
Stellar Flyby Analysis for Spiral Arm Hosts with Gaia DR3
Creators: name: Shuai, Linling
name: Ren, Bin B.
name: Dong, Ruobing
name: Zhou, Xingyu
name: Pueyo, Laurent
name: De Rosa, Robert J.
name: Fang, Taotao
name: Mawet, Dimitri
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Scattered light imaging studies have detected nearly two dozen spiral arm systems in circumstellar disks, yet the formation mechanisms for most of them are still under debate. Although existing studies can use motion measurements to distinguish leading mechanisms such as planet-disk interaction and disk self-gravity, close-in stellar flybys can induce short-lived spirals and even excite arm-driving planets into highly eccentric orbits. With unprecedented stellar location and proper motion measurements from Gaia DR3, here we study for known spiral arm systems their flyby history with their stellar neighbours by formulating an analytical on-sky flyby framework. For stellar neighbors currently located within 10 pc from the spiral hosts, we restrict the flyby time to be within the past $10^4$ yr and the flyby distance to be within $10$ times the disk extent in scattered light. Among a total of $12570$ neighbors that are identified in Gaia DR3 for $20$ spiral systems, we do not identify credible flyby candidates for isolated systems. Our analysis suggests that close-in recent flyby is not the dominant formation mechanism for isolated spiral systems in scattered light.
description: 14 pages, 4 figures, 2 tables, ApJS accepted. Data files for Table 2 in the ancillary folder. Code framework available at https://github.com/slinling/afm-spirals
Entanglement evolution after a global quench across a conformal defect
Creators: name: Capizzi, Luca
name: Eisler, Viktor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the evolution of entanglement after a global quench in a one-dimensional quantum system with a localized impurity. For systems described by a conformal field theory, the entanglement entropy between the two regions separated by the defect grows linearly in time. Introducing the notion of boundary twist fields, we show how the slope of this growth can be related to the effective central charge that emerges in the study of ground-state entropy in the presence of the defect. On the other hand, we also consider a particular lattice realization of the quench in a free-fermion chain with a conformal defect. Starting from a gapped initial state, we obtain the slope via a quasiparticle ansatz and observe small discrepancies between the field theory and lattice results, which persist even in the limit of a vanishing gap.
description: Submission to SciPost; References added
Adaptive Video Streaming for Wireless Networks with Multiple Users and Helpers
Creators: name: Bethanabhotla, Dilip
name: Caire, Giuseppe
name: Neely, Michael J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Information Theory (cs.IT)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We consider the optimal design of a scheduling policy for adaptive video streaming in a wireless network formed by several users and helpers. A feature of such networks is that any user is typically in the range of multiple helpers. Hence, in order to cope with user-helper association, load balancing and inter-cell interference, an efficient streaming policy should allow the users to dynamically select the helper node to download from, and determine adaptively the video quality level of the download. In order to obtain a tractable formulation, we follow a "divide and conquer" approach: i) Assuming that each video packet (chunk) is delivered within its playback delay ("smooth streaming regime"), the problem is formulated as a network utility maximization (NUM), subject to queue stability, where the network utility function is a concave and componentwise non-decreasing function of the users' video quality measure. ii) We solve the NUM problem by using a Lyapunov Drift Plus Penalty approach, obtaining a scheme that naturally decomposes into two sub-policies referred to as "congestion control" (adaptive video quality and helper station selection) and "transmission scheduling" (dynamic allocation of the helper-user physical layer transmission rates).Our solution is provably optimal with respect to the proposed NUM problem, in a strong per-sample path sense. iii) Finally, we propose a method to adaptively estimate the maximum queuing delays, such that each user can calculate its pre-buffering and re-buffering time in order to cope with the fluctuations of the queuing delays. Through simulations, we evaluate the performance of the proposed algorithm under realistic assumptions of a network with densely deployed helper nodes, and demonstrate the per-sample path optimality of the proposed solution by considering a non-stationary non-ergodic scenario with user mobility, VBR video coding.
description: final version to appear in IEEE Transactions on Communications
Atmospheric characterization of the ultra-hot Jupiter WASP-33b: Detection of Ti and V emission lines and retrieval of a broadened line profile
Creators: name: Cont, D.
name: Yan, F.
name: Reiners, A.
name: Nortmann, L.
name: Molaverdikhani, K.
name: Pallé, E.
name: Henning, Th.
name: Ribas, I.
name: Quirrenbach, A.
name: Caballero, J. A.
name: Amado, P. J.
name: Czesla, S.
name: Lesjak, F.
name: López-Puertas, M.
name: Mollière, P.
name: Montes, D.
name: Morello, G.
name: Nagel, E.
name: Pedraz, S.
name: Sánchez-López, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Ultra-hot Jupiters are highly irradiated gas giant exoplanets on close-in orbits around their host stars. We analyzed high-resolution spectra from CARMENES, HARPS-N, and ESPaDOnS taken over eight observation nights to study the emission spectrum of WASP-33b and draw conclusions about its atmosphere. By applying the cross-correlation technique, we detected the spectral signatures of Ti I, V I, and a tentative signal of Ti II for the first time via emission spectroscopy. These detections are an important finding because of the fundamental role of Ti- and V-bearing species in the planetary energy balance. Moreover, we assessed and confirm the presence of OH, Fe I, and Si I from previous studies. The spectral lines are all detected in emission, which unambiguously proves the presence of an inverted temperature profile in the planetary atmosphere. By performing retrievals on the emission lines of all the detected species, we determined a relatively weak atmospheric thermal inversion extending from approximately 3400 K to 4000 K. We infer a supersolar metallicity close to 1.5 dex in the planetary atmosphere, and find that its emission signature undergoes significant line broadening with a Gaussian FWHM of about 4.5 km/s. Also, we find that the atmospheric temperature profile retrieved at orbital phases far from the secondary eclipse is about 300 K to 700 K cooler than that measured close to the secondary eclipse, which is consistent with different day- and nightside temperatures. Moreover, retrievals performed on the emission lines of the individual chemical species lead to consistent results, which gives additional confidence to our retrieval method. Increasing the number of species included in the retrieval and expanding the set of retrieved atmospheric parameters will further advance our understanding of exoplanet atmospheres.
description: Accepted for publication in A&A
Seneca. Thyestes. Deutsch von Durs Grünbein. Mit Materialien zur Übersetzung und zu Leben und Werk Senecas. Hrsg. von Bernd Seidensticker
Creators: name: Lobe, Michael
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Seneca. Thyestes. Deutsch von Durs Grünbein. Mit Materialien zur Übersetzung und zu Leben und Werk Senecas. Hrsg. von Bernd Seidensticker. Frankfurt (Insel) 2002, 176 S., (ISBN 3-458-17114-2).
description: Forum Classicum, Nr. 2 (2003): Forum Classicum
Interaction at a Distance: Xenon Migration in Mb
Creators: name: Turan, Haydar Taylan
name: Boittier, Eric
name: Meuwly, Markus
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The transport of ligands, such as NO or O$_2$, through internal cavities is essential for the function of globular proteins, including hemoglobin, myoglobin (Mb), neuroglobin, truncated hemoglobins, or cytoglobin. For Mb, several internal cavities (Xe1 through Xe4) were observed experimentally through X-ray crystallography experiments. At a functional level, they were linked to ligand storage and internal ligand diffusion. Barriers for ligand diffusion and relative stabilization energies for the ligand in the initial and final pocket linking a transition may differ depending on the occupation state of the remaining pockets. This is considered in the present work from biased (umbrella sampling) and unbiased molecular dynamics simulations. It is found that the energetics of a particular ligand migration pathway may depend on the direction in which the transition is followed (forward or reverse) and the occupation state of other cavities. Furthermore, the barrier for a particular transition can depend in a non-additive fashion on the occupation of either cavity A or B or simultaneous occupation of both cavities, A and B. Multiple repeats for the Xe1$\rightarrow$Xe2 transition reveals that the activation barrier is a distribution of barrier heights rather than one single value which is confirmed by a distribution of transition times for the same transition from unbiased simulations. Dynamic cross correlation maps for this transition demonstrate that correlated motions occur between adjacent residues or through space. Residue Phe138 is characterized as a gate between Xe1 and Xe2 for the Xe1$\rightarrow$Xe2 transition. It is also found that the volumes of the internal cavities vary along the diffusion pathway which points towards dynamic communication between the ligand and the protein. The findings are discussed in the context of protein allostery.
The closure relations in optical afterglow of Gamma-Ray Bursts
Creators: name: Dainotti, M. G.
name: Levine, D.
name: Warren, D.
name: Fraija, N.
name: Sourav, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) are extremely high-energy events that can be observed at very high redshift. In addition to gamma rays, they can emit in X-ray, optical, and sometimes radio wavelengths. Here, following the approach in Srinivasaragavan et al. (2020); Dainotti et al. (2021b,c), and Dainotti et al (2022, submitted), we consider 82 GRBs from Dainotti et al. (2022a) that have been observed in optical wavelengths and fitted with a broken power law (BPL). We consider the relations between the spectral and temporal indices (closure relations; CRs) according to the synchrotron forward-shock model evolving in the constant-density interstellar medium (ISM; k = 0) and the stellar Wind environment (k = 2) in both slow- and fast-cooling regimes, where the density profile is defined as n is proportional to r to the power minus k. We find the nu > max nuc, nu m regime is most favored, where nu c and nu m are the cooling and characteristic frequencies, respectively. Finally, we test the 2D Dainotti correlation between the rest-frame end time of the plateau and the luminosity at that time on GRBs that fulfill the most-favored CRs. When we compare the intrinsic scatter sigma int of those 2D correlations to the scatter presented in Dainotti et al. (2020b, 2022a), we see the scatters of our correlations generally agree with the previous values within 1sigma, both before and after correction for selection bias. This new information has helped us to pinpoint subsamples of GRBs with features that could drive the GRB emission mechanism, and eventually allow for GRBs to be used as standard candles
description: 18 pages , 6 figures, Accepted in The Astrophysical Journal
Bulk Viscous Matter-dominated Universes: Asymptotic Properties
Creators: name: Avelino, Arturo
name: Garcia-Salcedo, Ricardo
name: Gonzalez, Tame
name: Nucamendi, Ulises
name: Quiros, Israel
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: By means of a combined use of the type Ia supernovae and H(z) data tests, together with the study of the asymptotic properties in the equivalent phase space - through the use of the dynamical systems tools - we demonstrate that the bulk viscous matter-dominated scenario is not a good model to explain the accepted cosmological paradigm, at least, under the parametrization of bulk viscosity considered in this paper. The main objection against such scenarios is the absence of conventional radiation and matter-dominated critical points in the phase space of the model. This entails that radiation and matter dominance are not generic solutions of the cosmological equations, so that these stages can be implemented only by means of unique and very specific initial conditions, i. e., of very unstable particular solutions. Such a behavior is in marked contradiction with the accepted cosmological paradigm which requires of an earlier stage dominated by relativistic species, followed by a period of conventional non-relativistic matter domination, during which the cosmic structure we see was formed. Also, we found that the bulk viscosity is positive just until very late times in the cosmic evolution, around z < 1. For earlier epochs it is negative, been in tension with the local second law of thermodynamics.
description: 26 pages, 13 figures. Replacement with the final (published) version
Self-Disclosure of HIV Status to Sexual Partners: A Qualitative Study of Issues Faced by Gay Men
Creators: name: Klitzman, Robert L.
Publisher: name: Columbia University
Year: 1999
Subjects: Gay men
Self-disclosure--Health aspects
Safe sex in AIDS prevention
HIV infections—Prevention

description: Objective:This study aimed to explore the range of issues faced by HIV-positive and HIV-negative gay men concerning HIV serostatus self-disclosure to sexual partners. Methods: In-depth semistructured interviews of 1–2 hr each were conducted with 26 HIV-positive and 15 HIV-negative gay men who were recruited from a larger cohort of gay men followed longitudinally for several years at a major medical center. Interviews were audiotaped, transcribed, and content-analyzed by two independent raters. Results: Several themes emerged concerning how disclosure was viewed, who and what was told, why disclosure occurred, and how disclosure decisions related to sexual behavior. Variations occurred in when and why men disclosed, and in the contents and definitions of their disclosures. Men disclosed using codes and indirect hints. Various rationalizations arose for not telling as well. Many men adopted the position that they do not tell, but practice safer sex, yet definitions of safer sex varied such that what some men consider safe, others do not. Conclusion: Recognition thus needs to be increased among clinicians, researchers, patients, and others that definitions of disclosure and of safer sex can vary significantly. The data have critical implications for designing appropriate interventions to limit the further spread of HIV.
title: Χωρικά ίχνη μνήμης στην πόλη του Πειραιά - διερεύνηση του αποτυπώματος της εσωτερικής μετανάστευσης
Creators: name: Μολαση Βασιλικη
Publisher: name: Technical University of Crete
Year: 2014

description: Μετά την απελευθέρωση της περιοχής του Πειραιά το 1829 η πόλη παρουσίαζε μία εικόνα εγκατάλειψης και ερήμωσης. Όμως με την ανακήρυξη της Αθήνας ως πρωτεύουσας του Kράτους, πολλές πληθυσμιακές ομάδες αποφάσισαν να μετοικήσουν  οργανωμένα στον Πειραιά αναζητώντας στέγη και νέες θέσεις εργασίας. Έτσι αρχίζει μία περίοδος ανασυγκρότησης της περιοχής και σηματοδοτείται η αφετηρία της νέας πόλης. Ο Πειραιάς επιλέγεται, λοιπόν, ως ένα από τα σημαντικότερα παραδείγματα πόλεων του Ελλαδικού χώρου που αναπτύχθηκε μέσω του γενικότερου πλαισίου εποίκησης ελληνικών πληθυσμιακών ομάδων.
Η παρούσα ερευνητική εργασία επιχειρεί τη διερεύνηση του αποτυπώματος της εσωτερικής μετανάστευσης στη δομή και στην οργάνωση της περιοχής του Πειραιά από την απελευθέρωση του (1829) μέχρι και την Μικρασιατική Καταστροφή(1922). Αντικείμενο της έρευνας αποτελούν οι οικισμοί που δημιουργήθηκαν έπειτα από την μετοίκηση ποικίλων πληθυσμιακών ομάδων στην ευρύτερη περιοχή του Πειραιά αυτή τη χρονική περιόδο. Πιο συγκεκριμένα, εξετάζονται οι οικισμοί των Χιώτικων, Υδραϊκών, Μανιάτικων, Κρητικών και  της Κοκκινιάς, Ταμπουρίων, Κερατσινίου, Δραπετσώνας, Κορυδαλλού   που οι κάτοικοί τους προέρχονται από τη Χίο, Ύδρα, Μάνη, Κρήτη και Μικρά Ασία καθώς αποτέλεσαν τις πιο συμπαγείς και οργανωμένες μετακινήσεις στην περιοχή του Πειραιά.
Μέσα από την ανάλυση των συνθηκών μετοίκησης των ομάδων αυτών, εξετάζεται ο τρόπος με τον οποίο η μετακίνηση ατόμων ή ομάδων, διαμόρφωσε ή άλλαξε το αστικό και φυσικό τοπίο ή ακόμα τον χαρακτήρα και τη φυσιογνωμία των γειτονιών. Επίσης,  εντοπίζεται η σύνδεση του τόπου προέλευσης με τον εκάστοτε οικισμό στον Πειραιά και η δημιουργία χωρικής μνήμης σε αυτούς τους νέους οικισμούς ως μέσου οικειοποίησης με το περιβάλλον. Τέλος, παρατηρείται η διαμόρφωση της εικόνας του τόπου μέσα από την συνεχή είσοδο πληθυσμιακών ομάδων προερχόμενων από διάφορες περιοχές της Ελλάδας.
Kinematical higher-twist corrections in $γ^* γ\to M \bar M $
Creators: name: Lorcé, Cédric
name: Pire, Bernard
name: Song, Qin-Tao
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We estimate kinematical higher-twist (up to twist 4) corrections to the $γ^*(q_1) γ(q_2) \to M(p_1) \bar{M}(p_2)$ amplitudes at large $Q^2=-q_1^2$ and small $s=(q_1+q_2)^2$, where $M$ is a scalar or pseudoscalar meson. This process is known to factorize at leading twist into a perturbatively calculable coefficient function and generalized distribution amplitudes (GDAs). The kinematical higher-twist contributions of order $s/Q^2$ and $m^2/Q^2$ turn out to be important in the cross section, considering the kinematics accessible at Belle and Belle II. We present numerical estimates for the cross section for $γ^* γ\to π^0 π^0$ with the $ππ$ GDA extracted from Belle measurements and with the asymptotic $ππ$ GDA as inputs to study the magnitude of the kinematical corrections. To see how the target mass corrections of order $m^2/Q^2$ affect the cross section, we also perform the calculation for $γ^* γ\to ηη$ by using a model $ηη$ GDA.In the range $s> 1$ GeV$^2$, the kinematical higher-twist corrections account for $\sim 15 \%$ of the total cross section, an effect which is not negligible. Since $ππ$ GDAs are the best way to access the pion energy-momentum tensor (EMT), our study demonstrates that an accurate evaluation of EMT form factors requires the inclusion of kinematical higher-twist contributions.
description: 17 pages, 7 figures
Eckard Lefèvre: Philosophie unter der Tyrannis. Ciceros Tusculanae Disputationes
Creators: name: Chwalek, Burkard
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Eckard Lefèvre: Philosophie unter der Tyrannis. Ciceros Tusculanae Disputationes. Heidelberg (Universitätsverlag Winter) 2008, 353 S. (Schriften der Philosophisch-historischen Klasse der Heidelberger Akademie der Wissenschaften 46), (ISBN 978-3-8253-5550-0).
description: Forum Classicum, Nr. 4 (2009): Forum Classicum
Sketched Multi-view Subspace Learning for Hyperspectral Anomalous Change Detection
Creators: name: Chang, Shizhen
name: Kopp, Michael
name: Ghamisi, Pedram
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In recent years, multi-view subspace learning has been garnering increasing attention. It aims to capture the inner relationships of the data that are collected from multiple sources by learning a unified representation. In this way, comprehensive information from multiple views is shared and preserved for the generalization processes. As a special branch of temporal series hyperspectral image (HSI) processing, the anomalous change detection task focuses on detecting very small changes among different temporal images. However, when the volume of datasets is very large or the classes are relatively comprehensive, existing methods may fail to find those changes between the scenes, and end up with terrible detection results. In this paper, inspired by the sketched representation and multi-view subspace learning, a sketched multi-view subspace learning (SMSL) model is proposed for HSI anomalous change detection. The proposed model preserves major information from the image pairs and improves computational complexity by using a sketched representation matrix. Furthermore, the differences between scenes are extracted by utilizing the specific regularizer of the self-representation matrices. To evaluate the detection effectiveness of the proposed SMSL model, experiments are conducted on a benchmark hyperspectral remote sensing dataset and a natural hyperspectral dataset, and compared with other state-of-the art approaches.
Problems in comprehension of informed consent in rural and peri-urban Mali, West Africa
Creators: name: Krosin, Michael T.
name: Klitzman, Robert L.
name: Levin, Bruce
name: Cheng, Jianfeng
name: Ranney, Megan L.
Publisher: name: Columbia University
Year: 2006
Subjects: Clinical trials
Medical ethics
Clinical trials--Moral and ethical aspects
Informed consent (Medical law)
Developing countries

description: Background: Clinical trials undertaken by industrialized nations in undeveloped nations pose several critical ethical dilemmas. One key potential problem concerns misunderstandings of the consent process by participants. Though other reports have begun to explore this area, needs remain to identify specific areas of misunderstanding. Purpose: To identify deficits in comprehension during consent processes in Mali, West Africa. Methods: After obtaining informed consent for participation for a malaria vaccine trial being conducted in two West African villages, we administered to participants a nine-item questionnaire testing their understanding of information relevant for their consent. After testing their ability to understand a multiple choice format, 78 of 100 subjects were administered the questionnaire in one village and 85 of 100 in the other. Results: Participants had difficulty comprehending several concepts relevant to informed consent: 90% of respondents did not understand withdrawal criterion, 93% did not understand the existence of study side effects, and 74% did not understand that they were enrolled in an investigation as opposed to receiving therapy. The response rate and percentage of correct answers was generally much higher in the village nearer an urban center than the more rural village. The percent of correct answers exceeded 50% for five questions in the urban village and for only two question in the more rural setting. Limitations: Potential limitations of this study are relating to translation, cultural differences in the notion of informed consent, staff differences between each village, the proportion who could not understand the survey instrument and the fact that the study explored participants’ understanding of the consent process but did not observe the process itself. Conclusions: This study illustrates potential areas of miscomprehension in the consent process in a developing country. The degree of miscomprehension found in this study appeared to be more than that found in similar studies conducted in industrialized nations. Despite efforts to obtain truly informed consent, several factors make it more challenging in the developing world. This research highlights the need for more comprehensive studies of consent in developing countries. Such studies may eventually aid investigators in identifying, targeting and addressing specific areas of miscomprehension and thereby improve the informed consent process in the developing world.
Holographic Floquet states in low dimensions (II)
Creators: name: Berenguer, Martí
name: Garbayo, Ana
name: Mas, Javier
name: Ramallo, Alfonso V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue the study in [1] of a strongly coupled (2+1)-dimensional gauge theory subject to an external rotating electric field. The system is modelled holographically as a D3/D5 probe intersection. We add temperature to the D3 background and analyze the phase diagram. Also here, the conductive phase extends down to vanishing external electric field at discrete values of the frequencies where vector meson Floquet condensates form. For all temperatures, at given intercalated frequencies, we find new dual states that we name Floquet suppression points, where the vacuum polarization vanishes even in the presence of an electric field. From the data we infer that these states exist both in the conductive and insulating phases. In the massless limit we find a linear and instantaneous conductivity law, recovering known general results in 2+1 dimensions. We also examine the photovoltaic AC and DC current as the response to an oscillating probe electric field and see that rising the temperature suppresses the photovoltaic Hall current. All the results obtained carry over qualitatively unaltered to the case of D3/D7.
description: 22 pages + appendices
title: Διαδρομές και στάσεις στο όριο πόλης-θάλασσας. Ανάπλαση του παραλιακού μετώπου της Αλεξανδρουπολης
Creators: name: Αναγνωστου Αγγελικη
Publisher: name: Technical University of Crete
Year: 2015

description: Η Αλεξανδρούπολη αποτελεί μία από τις ελάχιστες παράκτιες σύγχρονες πόλεις της Ελλάδας με ρυμοτομικό σχέδιο (1878). Παρά το γεγονός ωστόσο αυτής της αστικής κανονικότητας και της ανάπτυξης της πόλης σε σχέση με τη θάλασσα, η πόλη δεν έχει καμία επαφή με αυτήν.

Συνεπώς, στόχος εκπόνησης της διπλωματικής εργασίας  είναι η αποκατάσταση της άμεσης επαφής μεταξύ της πόλης  και της θάλασσας τόσο αντιληπτικά όσο και σε επίπεδο αστικής σύνδεσης.  Η εξασθένιση της σχέσης πόλης- θάλασσας και η μη σύνδεσή της με αυτήν, οφείλεται στους παρακάτω λόγους: στην αδυναμία άρθρωσης των αστικών ιστών των διαφορετικών χρονικών περιόδων, στην ανάπτυξη του κέντρου της πόλης προς το εσωτερικό της, στους φραγμένους αστικούς άξονες που δεν καταλήγουν στη θάλασσα, στην έντονη υψομετρική διαφορά ανάμεσα στην πόλη και το επίπεδο της παραλίας, στην συγκοινωνιακή υποδομή (οδική αρτηρία παράλληλα στην παράκτια ζώνη, σιδηροδρομικές γραμμές)  καθώς και στην πυκνή δόμηση σε συνδυασμό με την έλλειψη δημόσιων χώρων κοντά στο παραλιακό μέτωπο.

Η πρόταση της διπλωματικής εργασίας επικεντρώνεται κυρίως στην άρση των αστικών φραγμών της σχέσης πόλης - θάλασσας, έτσι ώστε η πόλη να αξιοποιήσει και να ενισχύσει τη σχέση της με το υδάτινο στοιχείο, ενώ παράλληλα το παραλιακό της μέτωπο να αναβαθμιστεί και να αποτελέσει το κατεξοχήν δημόσιο χώρο της.

Αρχικά, επιχειρείται η αρμονική συνάρθρωση μεταξύ των αστικών ιστών των διαφορετικών χρονικών περιόδων, ενώ παράλληλα  γίνεται μια ιεράρχηση και απόφραξη αστικών αξόνων, δημιουργώντας ένα ιεραρχημένο δίκτυο δημόσιων χώρων (με βασικό πυρήνα αναφοράς το σχεδιασμό μιας  κεντρικής πλατείας στο σημείο όπου βρίσκεται το «σύμβολο» της πόλης, ο φάρος) με θέα και έξοδο προς τη θάλασσα. Διαμορφώνεται ένας παραλιακός πεζόδρομος όπως και «εσωτερικοί», ενώ  ταυτόχρονα ανασχεδιάζονται και τμήματα του αστικού ιστού με στόχο την κατεύθυνση και τον προσανατολισμό των κατοίκων και των επισκεπτών προς τη θάλασσα αλλά και την άμεση επαφή τους με αυτήν, καθώς και την αναζωογόνηση υποβαθμισμένων περιοχών.

Η αρχιτεκτονική πρόταση κινείται στις κλίμακες αστικού σχεδιασμού: 1:1000 του γενικού σχεδίου διάταξης (masterplan) του παραλιακού μετώπου μήκους περίπου 2χλμ, ενώ επικεντρώνεται σε τρεις χαρακτηριστικές περιοχές σε κλίμακα 1:500 ώστε να επιτευχθούν τα παραπάνω. Τέλος, σε ένα επιλεγμένο σημείο σχεδιάζεται ένα συγκρότημα κατοικιών σε κλίμακα 1.200.
Exploring covalently bonded diamondoid particles with valence photoelectron spectroscopy
Creators: name: Zimmermann, Tobias
name: Richter, Robert
name: Knecht, Andre
name: Fokin, Andrey A.
name: Koso, Tetyana V.
name: Chernish, Lesya V.
name: Gunchenko, Pavel A.
name: Schreiner, Peter R.
name: Möller, Thomas
name: Rander, Torbjörn
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We investigated the valence electronic structure of diamondoid particles in the gas phase, utilizing valence photoelectron spectroscopy. The samples were singly or doubly covalently bonded dimers or trimers of the lower diamondoids. Both the bond type and the combination of bonding partners are shown to affect the overall electronic structure. For singly bonded particles, we observe a small impact of the bond on the electronic structure, whereas for doubly bonded particles, the connecting bond determines the electronic structure of the highest occupied orbitals. In the singly bonded particles a superposition of the bonding partner orbitals determines the overall electronic structure. The experimental findings are supported by density functional theory computations at the M06-2X/cc-pVDZ level of theory.
description: 7 pages, 7 figures
Clara. Kurze lateinische Texte
Creators: name: Schmitz, Dietmar
name: Wissemann, Michael
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Clara. Kurze lateinische Texte.

1. Ursula Blank-Sangmeister, Vergil: Aeneas und Dido, Heft 22, Vandenhoek & Ruprecht: Göttingen 2007. 48 S. (ISBN 978-3-525- 71721-9).

2. Stefan Kliemt, Ciceros Philippische Reden. Eine Textauswahl. Heft 23. Vandenhoeck & Ruprecht: Göttingen 2008. 48 S. (ISBN 978-3-525-71722-6).

3. Alexander Micha, Senecas ,De brevitate vitae‘ und ,De OtioEine Textauswahl. Heft 24. Vandenhoeck & Ruprecht: Göttingen 2008. 48 S. (ISBN 978-3-525-71723-3).

4. Stefan Kliemt, Cicero, De finibus bonorum et malorum. Eine Textauswahl. Heft 25. Vandenhoeck & Ruprecht: Göttingen 2008. 48 S. (ISBN 978-3-525-71724-0).

5. Ursula Blank-Sangmeister, Die Atticus - Vita des Cornelius Nepos, Heft 26, Vandenhoek & Ruprecht: Göttingen 2009, 48 S. (ISBN 978-3-525-71725-7).

6. Ursula Blank-Sangmeister, Wir und die anderen. Caesar und Tacitus über fremde Völker, Heft 27, Vandenhoek & Ruprecht: Göttingen 2009, 48 S. (ISBN 978-3-525-71729-5).

7. Stefan Kliemt, Sallusts Bellum Iugurthinum, Heft 28, Vandenhoek & Ruprecht: Göttingen 2009, 32 S. (ISBN 978-3-525- 71728-8).

8. Stefan Kliemt, Augustus, Res gestae. Heft 29 Vandenhoeck & Ruprecht: Göttingen 2009. 48 S. (ISBN 978-3-525-71727-2).
description: Forum Classicum, Nr. 4 (2009): Forum Classicum
Additional file 1 of Host-microbiota-parasite interactions in two wild sparid fish species, Diplodus annularis and Oblada melanura (Teleostei, Sparidae) over a year: a pilot study
Creators: name: Scheifler, Mathilde
name: Magnanou, Elodie
name: Sanchez-Brosseau, Sophie
name: Desdevises, Yves
Publisher: name: figshare
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Total number of DNA samples used in this study, after rarefaction. Table S2. Abiotic descriptors for each sampling day. Data were obtained from the station SOLA, located in the Bay of Banyuls-sur-Mer, close to the fish sampling site. Table S3. Percentage of the most abundant phyla found in gill mucus, skin mucus and water samples. Table S4. Differences in bacterial abundances between fish species and seasons within skin and gill microbiota. LDA scores were calculated using Linear discriminant analysis Effect Size (LEfSe). Only bacterial taxa that raised an LDA score >2 were included. Bacterial taxa significantly enriched during the same season, in the same species and for both skin and gill mucus microbiota are in bold. Dann: Diplodus annularis; Omel: Oblada melanura. Table S5. Abundance of each Lamellodiscus species within the gills of each fish individual for each season. A: Autumn; Sp: Spring; Su: Summer; W: Winter. Figure S1. Relative abundances of bacterial phyla within gill and skin mucus during each season. A, Autumn; W, Winter; Sp, Spring; Su, Summer. Figure S2. Venn diagramm representing shared ASVs between skin, gill mucus and water samples. Based on a 0.005% abundance cutoff. Figure S3. Shannon’s diversity of Lamellodiscus species in Diplodus annularis (A) and Oblada melanura (B) gill arches during each season. Arrows represent significant differences between seasons (based on Tukey tests, p-value < 0.05).
Application of Deep Learning for Predictive Maintenance of Oilfield Equipment
Creators: name: Latrach, Abdeldjalil
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This thesis explored applications of the new emerging techniques of artificial intelligence and deep learning (neural networks in particular) for predictive maintenance, diagnostics and prognostics. Many neural architectures such as fully-connected, convolutional and recurrent neural networks were developed and tested on public datasets such as NASA C-MAPSS, Case Western Reserve University Bearings and FEMTO Bearings datasets to diagnose equipment health state and/or predict the remaining useful life (RUL) before breakdown. Many data processing and feature extraction procedures were used in combination with deep learning techniques such as dimensionality reduction (Principal Component Analysis) and signal processing (Fourier and Wavelet analyses) in order to create more meaningful and robust features to use as an input for neural networks architectures. This thesis also explored the potential use of these techniques in predictive maintenance within oil rigs for monitoring oilfield critical equipment in order to reduce unpredicted downtime and maintenance costs.
Constraints on Disformal Couplings from the Properties of the Cosmic Microwave Background Radiation
Creators: name: van de Bruck, Carsten
name: Morrice, Jack
name: Vu, Susan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Certain modified gravity theories predict the existence of an additional, non-conformally coupled scalar field. A disformal coupling of the field to the Cosmic Microwave Background (CMB) is shown to affect the evolution of the energy density in the radiation fluid and produces a modification of the distribution function of the CMB, which vanishes if photons and baryons couple in the same way to the scalar. We find the constraints on the couplings to matter and photons coming from the measurement of the CMB temperature evolution and from current upper limits on the $μ$--distortion of the CMB spectrum. We also point out that the measured equation of state of photons differs from $w_γ= 1/3$ in the presence of disformal couplings.
description: 5 pages, RevTeX, 2 figures; paper completely rewritten to accommodate new results. Includes now discussions of: multiple disformal couplings, kinetic theory, effective chemical potential, temperature-redshift relation and frame-dependence of equation of state
title: Δραπετσώνα \ Η θάλασσα και ο αστικός ιστός

title: Urban Network \ A new pedestrian area isnide the city of Drapetsona
Creators: name: Πρισιμιτζακης Θεοδωρος
Publisher: name: Technical University of Crete
Year: 2013

description: Στα πλαίσια μιας διπλωματικής εργασίας εξετάζονται τα όρια του αστικού ιστού με τις ανοίκιες λιμενικές ζώνες,όπως προκύπτουν στο παράδειγμα της πόλης της Δραπετσώνας.Μια πρόταση ανάπλασης και ανάδειξης του οδικού άξονα της 25ης Μαρτίου με τη δημιουργία ενός ενιαίου πεζόδρομου και ενός υπόγειου χώρου στάθμευσης με σκοπό την ανάδειξη και επανάχρηση του παραλιακού μετώπου της πόλης.
Interannual to Decadal Response of the Indonesian Throughflow Vertical Profile to Indo‐Pacific Forcing
Creators: name: Li, Mingting
name: Gordon, Arnold L.
name: Gruenburg, Laura Kristen
name: Wei, Jun
name: Yang, Song
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences
subject: Ocean circulation
subject: Ocean temperature
subject: Heat--Transmission
subject: Thermoclines (Oceanography)

description: The Indonesian Throughflow (ITF) inflow through the Sulawesi, Maluku, and Halmahera Seas and the ITF outflow into the eastern tropical Indian Ocean, based on reanalysis and model data, are used to investigate the interannual to decadal response of the ITF vertical profile to Indo‐Pacific forcing. The thermocline (upper 300 m) inflow, driven by the North Pacific Ocean, negatively responds to El Niño‐Southern Oscillation (ENSO) with almost no lag; while the thermocline outflow lags by 5–7 months. The sub‐thermocline (300–760 m) inflow, which is influenced by both the North and South Pacific, positively responds to ENSO and Interdecadal Pacific Oscillation (IPO) indices with 13 months lag and displays a long‐term trend tracking the IPO index. Influenced by eastern Indian Ocean variations, the sub‐thermocline outflow positively correlates with the ENSO and IPO indices with about 7–9 months lag, a shorter lag time than the inflow.
title: Διακύμανση της σύστασης και της θερμικής συμπεριφοράς δημοτικών στερεών αποβλήτων, σε μηνιαία βάση, με στόχο την ενεργειακή τους αξιοποιίηση
Creators: name: Κοσμαδακη Μαρια
Publisher: name: Technical University of Crete
Year: 2016

description: Με τα αποθέματα των ορυκτών καυσίμων να εξαντλούνται και τις ποσότητες των Αστικών Στερεών Απορριμμάτων (ΑΣΑ) να αυξάνονται δραματικά κάθε χρόνο, η εύρεση μίας εναλλακτικής λύσης είναι απαραίτητη. Tα ΑΣΑ θα μπορούσαν να χρησιμοποιηθούν ενεργειακά, συμβάλλοντας τόσο στη μείωση της χρήσης των συμβατικών καυσίμων, όσο και στην διαχείριση και μείωση του όγκου τους που εναποτίθεται στο περιβάλλον. Ο στόχος της παρούσας διπλωματικής εργασίας είναι να συμβάλλει στην επίλυση του ενεργειακού αυτού προβλήματος, μελετώντας τη θερμική συμπεριφορά των ΑΣΑ σε υψηλές θερμοκρασίες και τη διακύμανση της σύστασής τους, μηνιαία, για ένα χρόνο. Οι πειραματικές διαδικασίες που πραγματοποιήθηκαν περιελάμβαναν την προσεγγιστική και στοιχειακή ανάλυση των αρχικών δειγμάτων των ΑΣΑ, καθώς και τον υπολογισμό της θερμογόνου δύναμής τους. Στην συνέχεια, παρασκευάστηκαν τέφρες και πραγματοποιήθηκε χημική ανάλυση αυτών. Ειδικότερα, οι μέθοδοι που χρησιμοποιήθηκαν ήταν ICP-MS, μέθοδος χρωματομετρικού προσδιορισμού και φασματοσκοπία ατομικής απορρόφησης (AAS). Επίσης, πραγματοποιήθηκε ορυκτολογική ανάλυση των τεφρών με τη μέθοδο περίθλασης ακτίνων-Χ (XRD). Τέλος, η θερμική συμπεριφορά των δειγμάτων μελετήθηκε μέσω πειραμάτων σε θερμοζυγό TG/DTG (διαφορική θερμοβαρυτομετρική ανάλυση).
Τα αποτελέσματα των πειραματικών διαδικασιών έδειξαν ότι τα δείγματα είναι πλούσια σε πτητικά συστατικά (≈68%) και τέφρα (≈29%), ενώ έχουν χαμηλή θερμογόνο δύναμη (≈15 MJ/kg). Από την καύση των ΑΣΑ αναμένονται χαμηλές εκπομπές λόγω S και Cl, ενώ εκτιμάται ότι οι εκπομπές NOx του αζώτου θα είναι αυξημένες. Οι τέφρες των ΑΣΑ είναι εμπλουτισμένες σε Ca, Si και λιγότερο σε P. Τα ιχνοστοιχεία που παρουσιάζουν τις μεγαλύτερες περιεκτικότητες είναι το Sr και ο Zn, ενώ σημαντικές είναι οι περιεκτικότητες και των Pb, Cr και As. Επιπλέον, τα ΑΣΑ παρουσιάζουν μεγάλη τάση για επικαθίσεις και επισκωριάσεις, λόγω της υψηλής τους περιεκτικότητας σε αλκάλια. Τέλος, από τα διαγράμματα DTG, τόσο της πυρόλυσης όσο και της καύσης, συμπεραίνεται ότι η θερμική συμπεριφορά των ΑΣΑ δεν παρουσιάζει μεγάλη διαφοροποίηση μεταξύ των μηνών. Αυτό αποτελεί θετικό χαρακτηριστικό για τη μελλοντική τους χρήση ως καύσιμη ύλη. Παρόλα αυτά, λόγω της χαμηλής θερμογόνου δύναμης, της υψηλής περιεκτικότητας σε τέφρα και των αυξημένων εκπομπών NOx, τα ΑΣΑ προτείνονται ως δευτερεύον καύσιμο για συν-καύση.