cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Urbanisation and childhood asthma in a developing region of Latin-America: a cross-sectional analysis in northeastern Ecuador
Creators: name: Rodriguez, A
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2019

description: Asthma is becoming increasingly frequent in children in urban and rural areas of low and middle-income countries (LMICs), with a high prevalence in urban centres. The urbanisation process has been suggested as a possible explanation for this temporal increase and urban-rural differences in asthma prevalence. This thesis aims to explore the influence of urbanisation on asthma prevalence in a developing region of Latin-America in which the rural-urban transition is occurring rapidly. A systematic review evaluated how epidemiological studies have assessed the associations between asthma and urbanisation in LMICs. To understand better the relationship between urbanisation and wheeze/asthma in transitional areas, four cross-sectional studies were conducted in northwest Ecuador. In the first of these, the level of urbanicity at census ward level was quantified for children living in diverse urban and rural localities and urbanicity level was associated with asthma. The second and third study explored how internal migration, an important element of the urbanisation process, is associated with the prevalence of current wheeze in urban and rural populations, respectively. The fourth analysis identified lifestyle domains in urban and rural populations based on socioeconomic and behavioural characteristics and explored how these characteristics could explain the prevalence of wheeze in a transitional region. This thesis provide evidence that even small-scale increases in levels of urbanicity are associated with a higher prevalence of wheeze/asthma. Analysis of internal migration showed that in urban areas, rural to urban migration was associated with an increase in the prevalence of wheeze while in rural areas the absence of the child’s mother at home, through temporary or permanent migration, was associated with an increase in prevalence of wheeze, rhinitis and eczema. Finally, an analysis of lifestyle factors showed that living in substandard housing and a high level of sedentarism were associated with a greater prevalence of wheeze.
Ionising Feedback Effects on Star Formation in Globular Clusters with Multiple Stellar Populations
Creators: name: Yaghoobi, Asiyeh
name: Rosdahl, Joakim
name: Calura, Francesco
name: Khalaj, Pouria
name: Haghi, Hosein
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Using 3D radiation-hydrodynamical simulations, we study the effects of ionising radiation on the formation of second-generation (SG) stars in Globular Clusters (GCs) with multiple stellar populations. In particular, we focus on massive ($10^7 \mathrm{M}_{\odot}$) and young (40-Myr old) GCs. We consider stellar winds from asymptotic giant branch (AGB) stars, ram pressure, gas accretion onto the cluster, and photoionisation feedback of binary stars. We find that the stellar luminosity is strong enough to warm and ionise the intracluster medium, but it does not lead to a significant gas expulsion. The cluster can thus retain the ejecta of AGB stars and the accreted pristine gas. In addition, efficient cooling occurs in the central region of the cluster within $50 \mathrm{Myr}$ from the formation of first generation stars, leading to the formation of SG stars. Our results indicate that the inclusion of photoionisation does not suppress SG formation, but rather delays it by about $\sim10 \mathrm{Myr}$. The time delay depends on the density of the pristine gas, so that a denser medium exhibits a shorter delay in star formation. Moreover, photoionisation leads to a modest decrease in the total SG mass, compared to a model without it.
description: 13 pages, 8 figures, 2 table. Accepted for publication in MNRAS
Electromagnetic wormholes and virtual magnetic monopoles
Creators: name: Greenleaf, Allan
name: Kurylev, Yaroslav
name: Lassas, Matti
name: Uhlmann, Gunther
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: PACS 41.20.Jb, 42.79.Ry

description: We describe new configurations of electromagnetic (EM) material parameters, the electric permittivity $ε$ and magnetic permeability $μ$, that allow one to construct from metamaterials objects that function as invisible tunnels. These allow EM wave propagation between two points, but the tunnels and the regions they enclose are not detectable to EM observations. Such devices function as wormholes with respect to Maxwell's equations and effectively change the topology of space vis-a-vis EM wave propagation. We suggest several applications, including devices behaving as virtual magnetic monopoles.
description: 4 pages, 3 figures
Post-buckling behaviour and delamination growth in defected variable angle tow composite laminates
Creators: name: Gaetano, Daniele
name: Greco, Fabrizio
name: Leonetti, Lorenzo
name: Pranno, Andrea
name: Zucco, Giovanni
Publisher: name: University of Limerick
Year: 2025
Subjects: classificationCode: 40
subject: Engineering

description: Due to their specific strength and stiffness properties, composite materials are largely used in lightweight structural applications in aerospace, automotive and mechanical engineering. Understanding how these materials fail under service loads is a challenging aspect of designing advanced composite structures. In fact, the failure of composite laminated structures is often governed by complex interactions of multiple interlaminar failure and damage mechanisms. Among them, delamination is one of the damage modes requiring large attention due to the low interlaminar resistance between the different layers comprised in a composite laminate. In addition, this phenomenon may be triggered by defects introduced in the construction phase or by the presence of connections leading to stress concentrations. When coupled with buckling phenomena, delamination inevitably decreases the load-carrying capacity of lightweight composite structures. Variable Angle Tow (VAT) laminates have been proven to improve the buckling and post-buckling response of those structures significantly. However, little is known about the geometrically nonlinear behaviour of VAT composite laminates with delaminations. This work applies the cohesive finite element method to model delamination growth in VAT composite laminates containing initial defects under compressive loading conditions. Numerical simulations investigate the effects of the fibre angle variation on the geometrically nonlinear static response of VAT composite laminates compared to that of their classical straight fibre counterparts.
Noncommutative chaotic inflation and WMAP three year results
Creators: name: Zhang, Xin
name: Wu, Feng-Quan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Noncommutative inflation is based upon the consideration of some effects of the space-time uncertainty principle motivated by ideas from string/M theory. The CMB anisotropies may carry a signature of this very early Universe correction from the space-time uncertainty principle and can be used to place constraints on the parameters of the noncommutative inflation model. In this paper we analyze the noncommutative chaotic inflation model by means of the WMAP three year results. We show that the noncommutative chaotic inflation model can produce a large negative running of spectral index within a reasonable range of $e$-folding number $N$, provided that the value of $p$ in the potential $V(ϕ)\propto ϕ^p$ is enhanced roughly to $p\sim 12-18$. Applying a likelihood analysis to the WMAP results, we find the best-fit values of parameters for the noncommutative chaotic inflation model. In addition, this model predicts a rather big gravitational wave which may be tested by the upcoming experiments.
description: 8 pages, 3 figures;accepted for publication in Phys. Lett. B
Phonon-induced pairing in quantum dot quantum simulator
Creators: name: Bhattacharya, Utso
name: Graß, Tobias
name: Bachtold, Adrian
name: Lewenstein, Maciej
name: Pistolesi, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Quantum simulations can provide new insights into the physics of strongly correlated electronic systems. A well studied system, but still open in many regards, is the Hubbard-Holstein Hamiltonian, where electronic repulsion is in competition with attraction generated by the electron-phonon coupling. In this context we study the phase diagram of four quantum dots in a suspended carbon nanotube and coupled to its flexural degrees of freedom. The system is described by a Hamiltonian of the Hubbard-Holstein class, where electrons on different sites interact with the same phonon. We find that the system presents a transition from the Mott insulating state to a polaronic state, with the appearance of pairing correlations and the breaking of the translational symmetry. Our study shows that this system thus constitutes a relevant example of a correlated system that could be studied by experimental realization.
description: 7 pages, 2 figures
The effect of self-image threat on risky and intertemporal decision making
Creators: name: Wentao Ren
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Personality and Social Contexts
subject: Social Psychology
subject: Experimental Analysis of Behavior
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Other Social and Behavioral Sciences
subject: Decision psychology
subject: social psychology

description: Previous studies have shown that the threat to self-image has a certain impact on risk decision-making. In this study, event recall task was used to manipulate participants' self-image threat, self-image enhancement, and economic resource shortage (control condition) to explore the impact of self-image threat on risk decision-making and intertemporal decision-making.
Γιώργος Σεβαστίκογλου η πολύπλευρη θεατρική του δραστηριότητα στην Ελλάδα και το εξωτερικό (1940-1990): μια πορεία προς την ανανέωση του δραματικού λόγου και της σκηνικής πράξης
Creators: name: Ζηροπούλου, Κωνσταντίνα Κ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2007
Subjects: Θέατρο Τέχνης Καρόλου Κουν
Θέατρο Πολιτικών Προσφύγων
Ενωμένοι Καλλιτέχνες
Προφορικές Μαρτυρίες
Πολιτικό Θέατρο
Αλκη Ζέη
Theatre Technis, Karolos Koun
Theatre of Political Refugees
Theatre Group, 'United Artists'
Oral History
Political Theatre
Alki, Zei

description: Η διατριβή επικεντρώθηκε στο πολύπλευρο θεατρικό έργο του Γ. Σεβαστίκογλου στην Ελλάδα και το εξωτερικό σε συνάρτηση με τις κυρίαρχες θεατρικές και ιστορικοκοινωνικές εξελίξεις της εποχής του. Διαρθτώθηκε επάνω σ'ένα σπονδυλωτό χρονικό που παρακολουθεί τις μετακινήσεις του καλλοτέχνη, όπως υπαγορεύτηκαν από την ιστορική συγκυρία. Μέσα από την ανασυγκρότηση του συγγραφικού και σκηνοθετικού του έργου αναδείχθηκε ένας καλλιτέχνης που βρίσκεται σε διαρκή διάλογο με νεωτερικές τάσεις στο πεδίο του δραματικού λόγου και της σκηνικής πράξης. Παράλληλα, στη διατριβή καταγράφονται πληροφορίες για αδιερεύνητες μέχρι σήμερα περιοχές και κεφάλαια της ιστορίας του ελληνικού μεταπολεμικού θεάτρου. Επιστρατεύτηκαν επίσης φωνές συνεργατών του (β' τόμος) που παρέχουν στοιχεία διαφωτιστικά της ταυτότητας του καλλιτέχνη αλλά και συνθέτουν ταυτόχρονα ένα οδοιπορικό στην ιστορία της νεότερης Ελλάδας, διευρύνοντας τον ορίζοντα της διατριβής και προς το πεδίο της Μικροϊστορίας
description: The thesis focused on the polymorphous theatrical activity of Y. Sevastikoglou in Greece and abroad in conjuction with the primary theatrical, social and historical evolution of his time. Merging the pieces of his work as a director, translator and playwright showcases his artistic quality of a contact innovation in the above fields. Also, information on up to now unexplored areas of the history of the Greek postwar theatre is recorded. The testimonies of his colaborators that are included in the thesis (second volume) shed light on the identity of the artist and constitute at the same time a travelogue in modern Greek history, expanding the research towards the field of 'Oral history'
Supplementary document for Multifocal meta-fiber based on fractional Talbot effect - 6745560.pdf
Creators: name: Jiang, Meiling
name: Zhang, Mingsi
name: Xie, Fei
name: Qin, Fei
name: Sun, Li-Peng
name: Li, Xiangping
name: Cao, Yao-Yu
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplementary Material
Additional file 1 of A prospectus of plant growth promoting endophytic bacterium from orchid (Vanda cristata)
Creators: name: Shah, Sujit
name: Chand, Krishna
name: Rekadwad, Bhagwan
name: Shouche, Yogesh S.
name: Sharma, Jyotsna
name: Bijaya Pant
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Plant Biology

description: Additional file 1.
[Sentence elicitation, sociolinguistic note]
Creators: name: Cuevas Cortés, Margarita
name: Macaulay, Monica
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: Chalcatongo de Hidalgo Mixtec language

description: Work on June 7 begins midway through 002. See pages 11-15 of associated field notes.
The Origin of Primordial Magnetic Fields
Creators: name: de Souza, Rafael S.
name: Opher, Reuven
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (abridged) We suggest here that the large scale fields $\sim μ$G, observed in galaxies at both high and low redshifts by Faraday Rotation Measurements (FRMs), have their origin in the electromagnetic fluctuations that naturally occurred in the dense hot plasma that existed just after the QHPT. We evolve the predicted fields to the present time. The size of the region containing a coherent magnetic field increased due to the fusion (polymerization) of smaller regions. Magnetic fields (MFs) $\sim 10 μG$ over a comoving $\sim 1$ pc region are predicted at redshift z $\sim 10$. These fields are orders of magnitude greater than those predicted in previous scenarios for creating primordial magnetic fields. Line-of-sight average magnetic fields (MFs) $\sim$ $10^{-2}$ $μ$G, valid for FRMs, are obtained over a 1 Mpc comoving region at the redshift z $\sim$ 10. In the collapse to a galaxy (comoving size $\sim$ 30 kpc) at z $\sim$ 10, the fields are amplified to $\sim 10 μ$G. This indicates that the MFs created immediately after the QHPT, predicted by the Fluctuation-Dissipation Theorem, could be the origin of the $\sim μG$ fields observed by FRMs in galaxies at both high and low redshifts.
description: 34 pages, 8 figures
Statistical models of hadron production -- simple models for complicated processes
Creators: name: Turko, Ludwik
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Thermal statistical models are simple and effective tool to describe particle production in high energy heavy ion collision. It is shown that for higher moments finite volume corrections become important observable quantities. They make possible to differentiate between different statistical ensembles even in the thermodynamic limit.
description: 10 pages. Lecture given at the Helmoltz International Summer School ''Dense Matter in Heavy Ion Collisions and Astrophysics'', JINR, Dubna, 21.08--1.09.2006. To appear in the School proceedings
Electrical Conductivity in Quantum Materials
Creators: name: Mitscherling, Johannes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In recent years, there is an increasing interest in transport phenomena that are fundamentally linked to the presence of multiple bands. In this thesis, we develop, discuss, and apply a theory of the electrical conductivity that includes interband contributions within a microscopic approach. We derive formulas of the conductivity tensor $σ^{αβ}$ and the Hall conductivity tensor $σ^{αβη}_\text{H}$ for a general two-band model. This minimal model of a multiband system captures a broad variety of very different physical phenomena ranging from spiral spin density waves to Chern insulators. We motivate and derive a unique and physically transparent decomposition of the conductivity tensors by identifying intra- and interband contributions as well as symmetric and antisymmetric contributions under the exchange of the current and the electric field directions. Using these criteria, we find that the symmetric interband contribution of $σ^{αβ}$ is connected to the quantum metric, whereas the antisymmetric part involves the Berry curvature and captures the intrinsic anomalous Hall effect. We include a phenomenological relaxation rate $Γ$ of arbitrary size to study the relevance of the interband contributions systematically. Our conductivity formulas are applied to models and experiments of recent interest. We identify typical scaling behaviors of the conductivities with respect to $Γ$ in agreement with theoretical and experimental results. Recent experiments on hole-doped cuprates under very high magnetic fields show a drastic change of the Hall number when entering the pseudogap regime, which is shown to be consistent with the onset of spiral magnetic order. We analyze the experimental results with our formulas of the longitudinal and the Hall conductivity and clarify the validity of the broadly used Boltzmann-like conductivity formulas.
description: PhD Thesis (2021)
Analysis of systematic errors in the calculation of renormalization constants of the topological susceptibility on the lattice
Creators: name: Alles, B.
name: D'Elia, M.
name: Di Giacomo, A.
name: Pica, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A Ginsparg-Wilson based calibration of the topological charge is used to calculate the renormalization constants which appear in the field-theoretical determination of the topological susceptibility on the lattice. A systematic comparison is made with calculations based on cooling. The two methods agree within present statistical errors (3%-4%). We also discuss the independence of the multiplicative renormalization constant Z from the background topological charge used to determine it.
description: 12 pages, Latex source + 4 ps-figures. Expanded discussion on second systematic error + 1 more figure
Optoelectronic Properties of Chalcogenide Perovskites by Many-Body Perturbation Theory
Creators: name: Kumar, Manish
name: Singh, Arunima
name: Gill, Deepika
name: Bhattacharya, Saswata
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Chalcogenide perovskites have emerged as non-toxic and stable photovoltaic materials, acting as an alternative to lead halide hybrid perovskites having similar optoelectronic properties. In the present work, we report the electronic and optical properties of chalcogenide perovskites AZrS$_3$ (A=Ca, Sr, Ba) by using the density functional theory (DFT) and many-body perturbation theory (MBPT viz. G$_0$W$_0$ and BSE). This study includes excitonic analysis for the aforementioned systems. The exciton binding energy (E$_\textrm{B}$) is found to be larger than that of the halide perovskites, as the ionic contribution to dielectric screening is negligible in the former. We also observe a more stable charge-separated polaronic state as compared to that of the bound exciton. Finally, on the basis of direct gap and absorption coefficient, the estimated spectroscopic limited maximum efficiency (SLME) of the solar cells is large and suggests the applicability of these perovskites in photovoltaics.
description: 31 pages, 11 figures
Thorsten Fögen, Wissen, Kommunikation und Selbstdarstellung. Zur Struktur und Charakteristik römischer Fachtexte der frühen Kaiserzeit
Creators: name: Diederich, Silke
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Thorsten Fögen, Wissen, Kommunikation und Selbstdarstellung. Zur Struktur und Charakteristik römischer Fachtexte der frühen Kaiserzeit. Zetemata 134. München: C.H. Beck Verlag 2009, IX + 340 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 14 (2011): Göttinger Forum für Altertumswissenschaft
A new synthesis of enantiomerically pure bicyclic ketones. Total synthesis of the diterpenoids (-)-Kolavenol and (-)-Agelasine B
Creators: name: Roberge, Jacques Y.
Publisher: name: University of British Columbia
Year: 2008

description: This thesis describes the synthesis of a series of enantiomerically pure cis-fused bicyclic trimethylstannyl ketones 124, 132 and 133. The bicyclic ketones were prepared by means of a methylenecyclohexane, methylenecyclopentane or anethylidenecyclopentane annulation sequence using the bifunctional conjunctive reagents 12, 110 and 115 and the novel, optically active trimethylstannyl enone 64,in which the trimethylstannyl moiety acts as a readily removable "anchoring" group. The trimethylstannyl group has a pronounced effect on the circular dichroism of the optically active ketones. A discussion of these effects is presented. A new, general destannylation procedure was developed and used to prepare a series of enantiomerically pure bicyclic alcohols 165, 175 and 176 from the ketones 124, 132 and 133. The generality of the method was demonstrated with the destannylation (Li, t-BuOH, NH3) of a series of trimethylstannyl alcohols, ethers and alkenes. The alcohol 165 was used as an intermediate for the total syntheses of the optically active clerodane diterpenoids (-)-kolavenol (65) and (-)-agelasine B (31). (-)-Kolavenol (65) was prepared in 14 steps and 19.4% overall yield from the enone 64. Thus, the alcohol 165 was oxidized and the resulting ketone 47 was converted to the nitriles 215. The nitriles 215 were stereoselectively alkylated to produce thenitrile 216. Functional group manipulations yielded the iodide 213 via the ether 214. A novel palladium-catalyzed coupling of an organozinc reagent (prepared from 213) with the vinyl iodide 265 produced the ether 282. (-)-Kolavenol (65) was obtained by removal of the silyl protecting group. (-)-Agelasine B (31) was obtained in three steps from the ether 282. Thus, 282 was converted directly into the bromide 300, and the resulting product was alkylated with the methyl adenine derivative 301 to give the methoxy-protected adenine _v "'SnMe3 -R= H, 132 R R = Me, 133 CCI Me3Sn 1 2 CI Me3Sn 110 R R= H, 175 R = Me, 176 H OH 165 OH 65 OMe___/ 214 derivative 302. A new, mild electrochemical deprotection of 302 was used to prepare (-)-agelasine B (31). This compound was prepared in 16 steps and 5.6% yield from the enone 64. A new procedure for the synthesis of compound 233, the enantiomer of theactive component of the commercially useful perfume lonoxide® 251, was discovered. The ether 214 was efficiently converted into 233 using acidic reaction conditions.
Christian Heitz, Die Guten, die Bösen und die Hässlichen – Nördliche ‚Barbaren‘ in der römischen Bildkunst
Creators: name: Feuser, Stefan
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Christian Heitz, Die Guten, die Bösen und die Hässlichen – Nördliche ‚Barbaren‘ in der römischen Bildkunst. Antiquitates. Archäologische Forschungsergebnisse 48. Hamburg: Verlag Dr. Kovač 2009, 300 S., 10 s/w-Abb., 67 s/w-Taf.
description: Göttinger Forum für Altertumswissenschaft, Bd. 14 (2011): Göttinger Forum für Altertumswissenschaft
Finiteness of Flux Vacua from Geometric Transitions
Creators: name: Torroba, Gonzalo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue for finiteness of flux vacua around type IIB CY singularities by computing their gauge theory duals. This leads us to propose a geometric transition where the compact 3-cycles support both RR and NS flux, while the open string side contains 5-brane bound states. By a suitable combination of S duality and symplectic transformations, both sides are shown to have the same IR physics. The finiteness then follows from a holomorphic change of couplings in the gauge side. As a nontrivial test, we compute the number of vacua on both sides for the conifold and the Argyres-Douglas point, and we find perfect agreement.
description: 32 pages, 4 figures
Additional file 6: of ANXA2 promotes esophageal cancer progression by activating MYC-HIF1A-VEGF axis
Creators: name: Ma, Sai
name: Lu, Chen-Chen
name: Yang, Li-Yan
name: Wang, Juan-Juan
name: Wang, Bo-Shi
name: Cai, Hong-Qing
name: Hao, Jia-Jie
name: Xu, Xin
name: Cai, Yan
name: Zhang, Yu
name: Wang, Ming-Rong
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Developmental Biology
subject: Virology

description: Figure S5. The effect of Ser25 phosphorylation on the cellular localization of ANXA2. ESCC cells stably expressing ANXA2-shRNA were transiently transfected with pcDNA3.1-ANXA2-Y23A, pcDNA3.1-ANXA2-Y23D, or empty vector. Cellular localization of exogenously expressed ANXA2-S25D or ANXA2-S25A (green) was detected by immunofluorescence staining. DAPI was used to stain nuclei (blue). Scale bar =â 30 ÂľM. (PDF 487 kb).
The physical properties of local (U)LIRGs: a comparison with nearby early- and late-type galaxies
Creators: name: Paspaliaris, E. -D.
name: Xilouris, E. M.
name: Nersesian, A.
name: Masoura, V. A.
name: Plionis, M.
name: Georgantopoulos, I.
name: Bianchi, S.
name: Katsioli, S.
name: Mountrichas, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In order to pinpoint the place of the (U)LIRGs in the local Universe we examine the properties of a sample of 67 such systems and compare them with those of 268 ETGs and 542 LTGs from the DustPedia database. We make use of multi-wavelength photometric data and the CIGALE SED fitting code to extract their physical parameters. The median SEDs as well as the values of the derived parameters were compared to those of the local ETGs and LTGs. In addition to that, (U)LIRGs were divided into seven classes, according to the merging stage of each system, and variations in the derived parameters were investigated. (U)LIRGs occupy the `high-end' on the dust and stellar mass, and SFR in the local Universe with median values of 5.2$\times10^7~M_{\odot}$, 6.3$\times10^{10}~M_{\odot}$ and 52$~M_{\odot}$yr$^{-1}$, respectively. The PDR-dust emission in (U)LIRGs is 11.7% of the total dust luminosity, significantly higher than ETGs (1.6%) and the LTGs (5.2%). The median value of the dust temperature in (U)LIRGs is 32 K, which is higher compared to both the ETGs (28 K) and the LTGs (22 K). Small differences, in the derived parameters, are seen for the seven merging classes of our sample of (U)LIRGs with the most evident one being on the star-formation rate, where in systems in late merging stages the median SFR reaches up to 99 M$_{\odot}$ yr$^{-1}$ compared to 26 M$_{\odot}$ yr$^{-1}$ for the isolated ones. In contrast to the local normal galaxies where old stars dominate the stellar emission, the young stars in (U)LIRGs contribute with 64% of their luminosity to the total stellar luminosity. The fraction of the dust-absorbed stellar luminosity is extremely high in (U)LIRGs (78%) compared to 7% and 25% in ETGs and ETGs, respectively. The fraction of the stellar luminosity used to heat up the dust grains is very high in (U)LIRGs, while 74% of the dust emission comes from the young stars.
Addressing individual atoms in optical lattices with standing-wave driving fields
Creators: name: Cho, Jaeyoon
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A scheme for addressing individual atoms in one- or two-dimensional optical lattices loaded with one atom per site is proposed. The scheme is based on position-dependent atomic population transfer induced by several standing-wave driving fields. This allows various operations important in quantum information processing, such as manipulation and measurement of any single atom, two-qubit operations between any pair of adjacent atoms, and patterned loading of the lattice with one atom per every nth site for arbitrary n. The proposed scheme is robust against considerable imperfections and actually within reach of current technology.
description: 4 pages, 3 figures; minor revisions
Dimerization of many-body subradiant states in waveguide quantum electrodynamics
Creators: name: Poshakinskiy, Alexander V.
name: Poddubny, Alexander N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study theoretically subradiant states in the array of atoms coupled to photons propagating in a one-dimensional waveguide focusing on the strongly interacting many-body regime with large excitation fill factor $f$. We introduce a generalized many-body entropy of entanglement based on exact numerical diagonalization followed by a high-order singular value decomposition. This approach has allowed us to visualize and understand the structure of a many-body quantum state. We reveal the breakdown of fermionized subradiant states with increase of $f$ with emergence of short-ranged dimerized antiferromagnetic correlations at the critical point $f=1/2$ and the complete disappearance of subradiant states at $f>1/2$.
description: 6 pages, 4 figures
Smart testing and critical care bed sharing for COVID-19 control
Creators: name: Silva, Paulo J. S.
name: Pereira, Tiago
name: Sagastizabal, Claudia
name: Nonato, Luis
name: Cordova, Marcelo
name: Struchiner, Claudio J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: During the early months of the current COVID-19 pandemic, social-distancing measures effectively slowed disease transmission in many countries in Europe and Asia, but the same benefits have not been observed in some developing countries such as Brazil. In part, this is due to a failure to organise systematic testing campaigns at nationwide or even regional levels. To gain effective control of the pandemic, decision-makers in developing countries, particularly those with large populations, must overcome difficulties posed by an unequal distribution of wealth combined with low daily testing capacities. The economic infrastructure of the country, often concentrated in a few cities, forces workers to travel from commuter cities and rural areas, which induces strong nonlinear effects on disease transmission. In the present study, we develop a smart testing strategy to identify geographic regions where COVID-19 testing could most effectively be deployed to limit further disease transmission. The strategy uses readily available anonymised mobility and demographic data integrated with intensive care unit (ICU) occupancy data and city-specific social-distancing measures. Taking into account the heterogeneity of ICU bed occupancy in differing regions and the stages of disease evolution, we use a data-driven study of the Brazilian state of Sao Paulo as an example to show that smart testing strategies can rapidly limit transmission while reducing the need for social-distancing measures, thus returning life to a so-called new normal, even when testing capacity is limited.
Martin Bentz – Christoph Reusser (Hgg.), Etruskisch-italische und römisch-republikanische Häuser
Creators: name: Trümper, Monika
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Martin Bentz – Christoph Reusser (Hgg.), Etruskisch-italische und römisch-republikanische Häuser. Studien zur Antiken Stadt 9. Wiesbaden: Reichert Verlag 2010, 304 S., 323 s/w-Abb., 5 farb. Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 14 (2011): Göttinger Forum für Altertumswissenschaft
Jeffrey Spier, Treasures of the Ferrell Collection
Creators: name: Lang, Jörn
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Jeffrey Spier, Treasures of the Ferrell Collection. Wiesbaden: Reichert Verlag 2010, 334 S., durchgängig farb. Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 14 (2011): Göttinger Forum für Altertumswissenschaft
How to Measure the Quantum State of Collective Atomic Spin Excitation
Creators: name: Usami, Koji
name: Takahashi, Jun-ichi
name: Kozuma, Mikio
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The spin state of an atomic ensemble can be viewed as two bosonic modes, i.e., a quantum signal mode and a $c$-numbered ``local oscillator'' mode when large numbers of spin-1/2 atoms are spin-polarized along a certain axis and collectively manipulated within the vicinity of the axis. We present a concrete procedure which determines the spin-excitation-number distribution, i.e., the diagonal elements of the density matrix in the Dicke basis for the collective spin state. By seeing the collective spin state as a statistical mixture of the inherently-entangled Dicke states, the physical picture of its multi-particle entanglement is made clear.
description: 6 pages, to appear in Phys. Rev. A
The littlest Higgs model with T-parity and single top production at $ep$ collision
Creators: name: Yue, Chong-Xing
name: Wen, Jia
name: Liu, Jin-Yan
name: Liu, Wei
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Based on calculating the contributions of the littlest Higgs model with T-parity (called $LHT$ model) to the anomalous top coupling $tqγ$ ($q=u$ or $c$), we consider single top production via the t-channel partonic process $eq\to et$ at $ep$ collision. Our numerical results show that the production cross section in the $LHT$ model can be significantly enhanced relative to that in the standard model.
description: 11 pages, 5 figures
Η Θεολογία του καλού και του αγαθού στον άγιο Διονύσιο τον Αρεοπαγίτη
Creators: name: Pupaza, Daniel
Publisher: name: Aristotle University of Thessaloniki
Year: 2009
Subjects: Διονύσιος Αρεοπαγίτης
Θεός
Αγαθό
Καλό
Dionysius Areopagita
God
Good
Beautiful

description: Διατρέχοντας όλα τα συγγράμματα που συνάχθηκαν υπό την ονομασία Corpus Dionysiacum (CD) εκπονήσαμε μια μελέτη, η οποία σκοπός έχει να προβάλει τη διδασκαλία του συγγραφέα τους, του αγίου Διονυσίου του Αρεοπαγίτου, με προοπτική των δύο κεντρικών εννοιών της θεολογίας του: το Καλό και το Αγαθό. Προσεγγίσαμε την περί του Καλού και Αγαθού διδασκαλία του αγίου Πατρός επισκοπώντας ολόκληρη την διάρθρωση της αρεοπαγιτικής θεολογίας σχετικά με τα πιο γενικά θέματα• αυτά αφορούν: τον Θεό, την καθολική πρόνοιά Του, την ιεραρχία των όντων, την εν Χριστώ οικονομία Του, καθώς και τη δυνατότητα της συμβολικής και μυστηριακής γνώσης Του μέσα στην Εκκλησία. Σ’ όλες αυτές τις βαθμίδες αποβλέπαμε να ανακαλύπτουμε την παρουσία του Καλού και Αγαθού, - αυτά τα δύο θεία ονόματα είναι αχώριστα συνδεδεμένα στην συλλογιστική του αγίου Διονυσίου - ως δύναμη ή ενέργεια, μέσα από τη μετοχή ή αμεθεξία, από τη γνώση ή αγνωσία. Η μελέτη μας δεν κατορθώνει να προβάλει την πρωτοτυπία του θείου Διονυσίου, ο οποίος διδάσκει πως ο Θεός δεν είναι μόνο υπερουσίως το Φως ή ο Έρως, αλλά προπαντός το Καλό και Αγαθό. Κατά τον Αρεοπαγίτη με τη μετοχή του στα μυστήρια της Εκκλησίας ο χριστιανός έχει τη δυνατότητα να βιώσει τη θεία Ωραιότητα και Αγαθότητα, ακόμα και να ενωθεί μυστικώς με το καλό και αγαθό Θεό, ο Οποίος του χαρίζει το δώρο της θεώσεως ως μια υπερκόσμια καλλοποιΐα και αγαθοποιΐα.
description: Running through all the books that were gathered under the name Corpus Dionysiacum we worked out a study, which aims to present the teaching of their writer, the saint Dionysius Areopagita, with the perspective of two central concepts of his theology: the Beautiful and the Good. We approached the teaching about these two divine names, which are inseparably connected in the thought of the of holy father, studding the entire structure of his theology with regard to subjects such as: the God, His catholic providence, the hierarchy of beings, the divine economy, the possibility of God’s symbolic and mystic knowledge in the Church. In all these domains we aimed to discover the presence of the Beautiful and Good, as primordial divine force, with the help of concepts such as participation or imparticipation, knowledge and unknowledge. Our study succeeds in presenting the originality of the divine Dionysius, who teaches that God is not only Light or Eros, but first of all the Beautiful and Good. According to the Areopagita by his participation in the mysteries of the Church, the Christian has the possibility of experiencing the divine Beauty and Goodness and even to mystically unite with the beautiful and good God, Who gives him the gift of the divinization as a celestial embellishment and betterment.
Patrick Schollmeyer, Einführung in die antike Ikonographie
Creators: name: Heinemann, Alexander
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Patrick Schollmeyer, Einführung in die antike Ikonographie. Reihe Einführung Archäologie. Darmstadt: Wissenschaftliche Buchgesellschaft 2012, 144 S., 30 s/w-Abb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 14 (2011): Göttinger Forum für Altertumswissenschaft
Quarkonia production at RHIC
Creators: name: Leitch, M. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Quarkonia (J/Psi, Psi', Upsilon) production provides a sensitive probe of gluon distributions and their modification in nuclei; and is a leading probe of the hot-dense (deconfined) matter created in high-energy collisions of heavy ions. I will discuss our current understanding of the modification of gluon distributions in nuclei and other cold-nuclear-matter effects in the context of recent p-p and p(d)-A quarkonia measurements. Then I will review the latest results for nucleus-nucleus collisions from RHIC, and together with the baseline results from d-A and p-p collisions, discuss several alternative explanations for the observed suppressions and future prospects for distinguishing these different pictures.
description: 8 pages including figures, writeup of talk given at Strange Quark Matter 2006, UCLA 26-31 March, 2006
High-Dimensional Bayesian Optimization with Multi-Task Learning for RocksDB
Creators: name: Alabed, Sami
name: Yoneki, Eiko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: RocksDB is a general-purpose embedded key-value store used in multiple different settings. Its versatility comes at the cost of complex tuning configurations. This paper investigates maximizing the throughput of RocksDB IO operations by auto-tuning ten parameters of varying ranges. Off-the-shelf optimizers struggle with high-dimensional problem spaces and require a large number of training samples. We propose two techniques to tackle this problem: multi-task modeling and dimensionality reduction through a manual grouping of parameters. By incorporating adjacent optimization in the model, the model converged faster and found complicated settings that other tuners could not find. This approach had an additional computational complexity overhead, which we mitigated by manually assigning parameters to each sub-goal through our knowledge of RocksDB. The model is then incorporated in a standard Bayesian Optimization loop to find parameters that maximize RocksDB's IO throughput. Our method achieved x1.3 improvement when benchmarked against a simulation of Facebook's social graph traffic, and converged in ten optimization steps compared to other state-of-the-art methods that required fifty steps.
Το φαινόμενο της δια Χριστόν σαλότητας στην ορθόδοξη χριστιανική παράδοση:
Creators: name: Iwaniuk, Andrzej B.
Publisher: name: Aristotle University of Thessaloniki
Year: 2005
Subjects: Η δια Χριστόν Σαλότητα
Ο ανατολικός ασκητισμός
Οι δια Χριστόν σαλοί
Η άκρα ταπείνωση
Η εν Χριστώ ελευθερία
Το σκάνδαλο
Folly for Christ's sake
Eastern Asceticism
Fools for Christ's sake
Extreme humiliation
Freedom in Christ
Scandal

description: Το πρώτο κεφάλαιο παρουσιάζει τους 'μακαρισμούς' ως πρότυπο της ηθικής συμπεριφοράς των 'δια Χριστόν σαλών'. Αναλύονται οι έννοιες 'Μωρία' και 'σαλότητα' και η μεταξύ τους σχέση στην Παράδοση της Εκκλησίας. Το δεύτερο ασχολείται με την οριοθέτηση των χαρακτηριστικών των 'σαλών' και με τη χριστομίμητη ταπείνωσή τους. Το τρίτο κεφάλαιο εξετάζει το θέμα του σκανδάλου, της αυτοταπείνωσης και του εμπαιγμού του κόσμου στη ζωή των 'σαλών'. Το τέταρτο ασχολείται με την κλήση στην άσκηση της 'σαλότητας' με το σκοπό στον οποίο απέβλεπαν οι 'σαλοί' και με τη θέση τους στη ζωή της Εκκλησίας. Το πέμπτο εξετάζει το ήθος των ΄σαλών', οι οποίοι δια της ταπεινώσεώς τους και της αποταγής του κόσμου γεύθηκαν την εν Χριστώ ελευθερία και την άπειρη αγάπη του Θεού
description: The first chapter presents the 'beatitudes' as the model of moral behavior of the 'fools for Christ's sake'. The meaning of 'folly-moria' and 'folly-salotita' and their relation are analysed in connection with the Tradition of the Church. The second deals with the definition of the characteristic of 'fools' and with their extreme humiliation. The third examines the subject of scandal, the self-humiliation and the deception of the people in the life of 'fools. The fourth deals with the calling for practising the 'folly' and with the aim the 'fools' were pursuing. The fifth examines the morality of the 'fools' who through their humaliation and the dismissal of the world tasted the Christ's freedom and the unfitine love of God
High resolution spectroscopy of the Vanadium oxide B⁴ [pi] -X⁴ [sigma] ⁻ (0,0) Band
Creators: name: Berno, Bob
Publisher: name: University of British Columbia
Year: 2008

description: The B⁴Π—X⁴Σ⁻ (0,0) band of VO has been recorded at sub-Doppler resolution by intermodulated fluorescence spectroscopy. Spectral linewidths of 60 MHz were typical; which enabled the hyperfine structure due to the ⁵¹V nucleus (I = 7/2) to be resolved for most of the observed branches. The hyperfine structure of the B⁴Π state is narrow except where it is heavily perturbed by the v = 2 level of the a²Σ⁺ state. The electron configuration of the a²Σ⁺ state was determined to be (4sσ)¹(3dδ)² because of the large Fermi contact interaction which arose from an unpaired electron having primarily metal 4s atomic orbital character. The transition frequencies were fit to a model which included the rotational, fine and hyperfine structure of the B⁴Π, X⁴Σ⁻, and a²Σ⁺ states. The B⁴Π / a²Σ⁺ interaction required the inclusion of an effective higher order spin-orbit parameter as well as a new hyperfine parameter, denoted by parameter e. The new hyperfine parameter is required to describe the hyperfine interactions between ⁴Π and ²Σ⁺ states. The fit included 3211 data points and gave an r.m.s. error of 0.00038 cm⁻¹.
Studying the global dynamics of conservative dynamical systems using the SALI chaos detection method
Creators: name: Manos, T.
name: Skokos, Ch.
name: Athanassoula, E.
name: Bountis, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the Smaller ALignment Index (SALI) method of chaos detection, to study the global dynamics of conservative dynamical systems described by differential or difference equations. In particular, we consider the well--known 2 and 4--dimensional symplectic standard map, as well as an autonomous Hamiltonian system of 2 and 3 degrees of freedom describing the motion of a star in models of barred galaxies. The application of SALI helped us to compute rapidly and accurately the percentage of regular and chaotic motion for particular values of the parameters of these systems. We were also able to perform a computationally efficient determination of the dependence of these percentages on the variation of several parameters of the studied models.
description: 9 pages, 6 figures, proceedings of the 19th Panhellenic Conference/Summer School "Nonlinear Science and Comlexity" Thessaloniki, Greece (Minor typographical errors corrected)
Volker Kästner (Hg.). Etrusker in Berlin. Etruskische Kunst in der Berliner Antikensammlung. Eine Einführung
Creators: name: Steuernagel, Dirk
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Volker Kästner (Hg.). Etrusker in Berlin. Etruskische Kunst in der Berliner Antikensammlung. Eine Einführung. Regensburg: Schnell und Steiner Verlag, Regensburg 2010, 152 S., 8 s/w- und 132 Farbabb.
description: Göttinger Forum für Altertumswissenschaft, Bd. 14 (2011): Göttinger Forum für Altertumswissenschaft
Giant Steps in Cefalu
Creators: name: Jeffery, David J.
name: Mazzali, Paolo A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Giant steps is a technique to accelerate Monte Carlo radiative transfer in optically-thick cells of astrophysical atmospheres by greatly reducing the number of Monte Carlo steps needed to propagate photon packets through such cells. Giant steps replaces the exact diffusion treatment of ordinary Monte Carlo radiative transfer in the cells by an approximate diffusion treatment. In this paper, we describe the basic idea of giant steps and report demonstration giant-steps flux calculations for the grey atmosphere. Speed-up factors of order 100 are obtained relative to ordinary Monte Carlo radiative transfer. In practical applications, speed-up factors of order ten (Mazzali et al. 2001) and perhaps more are possible. The speed-up factor is likely to be significantly application-dependent and there is a trade-off between speed-up and accuracy. This paper and past work (Mazzali et al. 2001) suggest that giant-steps error can probably be kept to a few percent by using sufficiently large boundary-layer optical depths while still maintaining large speed-up factors. Thus, giant steps can be characterized as a moderate accuracy radiative transfer technique.
description: 6 pages, 3 figures, submitted to the proceedings of the conference``The Multicoloured Landscape of Compact Objects and their Explosive Origins'', 2006 June 11--24, Cefalu, Sicily, to be published by AIP
Structure of a liquid crystalline fluid around a macroparticle: Density functional theory study
Creators: name: Cheung, David L.
name: Allen, Michael P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The structure of a molecular liquid, in both the nematic liquid crystalline and isotropic phases, around a cylindrical macroparticle, is studied using density functional theory. In the nematic phase the structure of the fluid is highly anisotropic with respect to the director, in agreement with results from simulation and phenomenological theories. On going into the isotropic phase the structure becomes rotationally invariant around the macroparticle with an oriented layer at the surface.
description: 10 pages, 6 figues. Submitted to Phys. Rev. E