cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mass and density of the transiting hot and rocky super-Earth LHS 1478 b (TOI-1640 b)
Creators: name: Soto, M. G.
name: Anglada-Escudé, G.
name: Dreizler, S.
name: Molaverdikhani, K.
name: Kemmer, J.
name: Rodríguez-López, C.
name: Lillo-Box, J.
name: Pallé, E.
name: Espinoza, N.
name: Caballero, J. A.
name: Quirrenbach, A.
name: Ribas, I.
name: Reiners, A.
name: Narita, N.
name: Hirano, T.
name: Amado, P. J.
name: Béjar, V. J. S.
name: Bluhm, P.
name: Burke, C. J.
name: Caldwell, D. A.
name: Charbonneau, D.
name: Cloutier, R.
name: Collins, K. A.
name: Cortés-Contreras, M.
name: Girardin, E.
name: Guerra, P.
name: Harakawa, H.
name: Hatzes, A. P.
name: Irwin, J.
name: Jenkins, J. M.
name: Jensen, E.
name: Kawauchi, K.
name: Kotani, T.
name: Kudo, T.
name: Kunimoto, M.
name: Kuzuhara, M.
name: Latham, D. W.
name: Montes, D.
name: Morales, J. C.
name: Mori, M.
name: Nelson, R. P.
name: Omiya, M.
name: Pedraz, S.
name: Passegger, V. M.
name: Rackham, B. V.
name: Rudat, A.
name: Schlieder, J. E.
name: Schöfer, P.
name: Schweitzer, A.
name: Selezneva, A.
name: Stockdale, C.
name: Tamura, M.
name: Trifonov, T.
name: Vanderspek, R.
name: Watanabe, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: One of the main objectives of the Transiting Exoplanet Survey Satellite ({TESS}) mission is the discovery of small rocky planets around relatively bright nearby stars. Here, we report the discovery and characterization of the transiting super-Earth planet orbiting LHS~1478 (TOI-1640). The star is an inactive red dwarf ($J \sim 9.6$\,mag and spectral type m3\,V) with mass and radius estimates of $0.20\pm0.01$\,$M_{\odot}$ and $0.25\pm0.01$\,$R_{\odot}$, respectively, and an effective temperature of $3381\pm54$\,K.It was observed by \tess in four sectors. These data revealed a transit-like feature with a period of 1.949 days. We combined the TESS data with three ground-based transit measurements, 57 radial velocity (RV) measurements from CARMENES, and 13 RV measurements from IRD, determining that the signal is produced by a planet with a mass of $2.33^{+0.20}_{-0.20}$\,$M_{\oplus}$ and a radius of $1.24^{+0.05}_{-0.05}$\,$R_{\oplus}$. The resulting bulk density of this planet is 6.67\,g\,cm$^{-3}$, which is consistent with a rocky planet with an Fe- and MgSiO$_3$-dominated composition. Although the planet would be too hot to sustain liquid water on its surface (its equilibrium temperature is about $\sim$595\,K, suggesting a Venus-like atmosphere), spectroscopic metrics based on the capabilities of the forthcoming James Webb Space Telescope and the fact that the host star is rather inactive indicate that this is one of the most favorable known rocky exoplanets for atmospheric characterization.
description: 14 pages, 10 figures, 6 tables, accepted for publication in A&A
Ανάλυση Τεχνικών Συνεχούς Βελτιστοποίησης και Εφαρμογές σε Προβλήματα Ηλεκτρομαγνητικής Απόκρυψης Αντικειμένων
Creators: name: Τσίτσογλου, Ζωή Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Τεχνικές Βελτιστοποίησης
Ηλεκτρομαγνητική απόκρυψη αντικειμένων
Πολυστρωματική Σφαίρα
Optimization Techniques
Electromagnetic cloaking
Multilayered spherical medium

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η μελέτη των τεχνικών Συνεχούς Βελτιστοποίησης και η εφαρμογή τους σε προβλήματα ηλεκτρομαγνητικής απόκρυψης αντικειμένων. Στα πλαίσια της εργασίας, εξετάστηκαν οι πιο δημοφιλείς μέθοδοι Βελτιστοποίησης και ο τρόπος υλοποίησής τους. Περιλαμβάνονται οι κλασσικές μέθοδοι Βελτιστοποίησης, κατηγοριοποιημένες βάσει των παραγώγων που χρησιμοποιούν κατά την υλοποίηση. Επιπρόσθετα, περιλαμβάνονται και αναλύονται μοντέρνες μέθοδοι Βελτιστοποίησης, οι οποίες προσφέρουν μία διαφορετική οπτική στην επίλυση των προβλημάτων. Στη συνέχεια, έγινε η εφαρμογή μίας από τις μεθόδους που αναλύθηκαν, για την επίλυση ενός φυσικού προβλήματος του «πραγματικού κόσμου». Το πρόβλημα που εξετάστηκε ήταν η Βελτιστοποίηση των χαρακτηριστικών μίας πολυστρωματικής σφαίρας, η οποία διεγείρεται από ηλεκτρομαγνητική ακτινοβολία από ένα αυθαίρετο δίπολο. Η εφαρμογή της μεθόδου Βελτιστοποίησης του προβλήματος υλοποιήθηκε για ποικίλες περιπτώσεις και παρουσιάζονται εκτενώς τα αποτελέσματα που προέκυψαν
description: The aim of the present thesis concerns the study of Continuous Optimization techniques and their application in electromagnetic cloaking. In this thesis, the most popular Optimization methods, their algorithms and the associated implementations were examined. The traditional Optimization methods are included, categorized according to the derivatives used for their implementation. In addition, modern Optimization methods, which give a different perspective in problem solving, are included and analyzed. Then, one of the examined methods has been applied in order to solve a physical problem of the “real world”. The problem analyzed was the Optimization of the characteristics of a multilayered spherical medium, which is excited by electromagnetic radiation due to an arbitrary dipole. The Optimization implementation of this problem has been conducted for a variety of cases and the results obtained are presented
Emails Are UX, Too: How to Make Better Overdue Notices & Other Communications
Creators: name: Davis, Robin Camille
name: Sheffield, Silvia
Publisher: name: Zenodo
Year: 2021

description: Davis, R. & Sheffield, S. (2021). Emails are UX, Too: How to Make Better Overdue Notices and Other Communications. Presentation given at Designing for Digital 2021, virtual. We implemented a large-scale improvement to our patrons' experience of our libraries by updating our automated emails. Using a tone evaluation, UX principles, and user research insights, we rewrote 18 email templates. We'll share how we wrestled with ILS limitations and why we focused on presenting information to stressed users.
Safety and effectiveness of new treatment regimens for visceral leishmaniasis in Bangladesh and India
Creators: name: Vishal Goyal
Publisher: name: F1000Research
Year: 2015

description: Our objectives are to provide data for authorities to make evidence-based recommendations for replacing miltefosine monotherapy with ambisome and combination therapies in the National kala-azar elimination program.

 All treatments showed excellent safety and efficacy and combination treatment was adopted as a second option for VL treatment. A combination regimen should be the choice of treatment at sites where a cold chain cannot be deployed.
Self-consistent determination of proton and nuclear PDFs at the Electron Ion Collider
Creators: name: Khalek, Rabah Abdul
name: Ethier, Jacob J.
name: Nocera, Emanuele R.
name: Rojo, Juan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We quantify the impact of unpolarized lepton-proton and lepton-nucleus inclusive deep-inelastic scattering (DIS) cross section measurements from the future Electron-Ion Collider (EIC) on the proton and nuclear parton distribution functions (PDFs). To this purpose we include neutral- and charged-current DIS pseudodata in a self-consistent set of proton and nuclear global PDF determinations based on the NNPDF methodology. We demonstrate that the EIC measurements will reduce the uncertainty of the light quark PDFs of the proton at large values of the momentum fraction $x$, and, more significantly, of the quark and gluon PDFs of heavy nuclei, especially at small and large $x$. We illustrate the implications of the improved precision of nuclear PDFs for the interaction of ultra-high energy cosmic neutrinos with matter.
description: 11 pages, 5 figures, In the context of the Electron-Ion collider yellow report
Identification of a novel 39kDa polypeptide as a serum biomarker for arthralgia in Chikungunya
Creators: name: Goutam Patra
name: Sudip Kumar Dutta
name: Arindam Naskar
name: Manab Kumar Ghosh
name: R.S. Bhattacharya
name: Yogiraj Ray
name: Halder, Soumen
name: Anusri Tripathi
name: Bhaswati Bandyopadhyay
name: Mukhopadhyay, Sumi
name: Bibhuti Saha
Publisher: name: F1000Research
Year: 2015

description: Our aim is to Identify and characterize unique arthralgia severity biomarkers in Circulating Immune Complexes (CICs) of Chikungunya patients.A novel arthralgia severity marker (39kDa protein) in the serum Circulating Immune Complex of patients with Chikungunya infection with persistent polyarthralgia was identified, which had good clinical correlation from baseline, all the way up to 9 months follow up. Interestingly, the expression of this newly identified marker 39 kDa protein was very high at onset, which gradually decreases with resolution of symptoms.
Correlations and commuting transfer matrices in integrable unitary circuits
Creators: name: Claeys, Pieter W.
name: Herzog-Arbeitman, Jonah
name: Lamacraft, Austen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider a unitary circuit where the underlying gates are chosen to be R-matrices satisfying the Yang-Baxter equation and correlation functions can be expressed through a transfer matrix formalism. These transfer matrices are no longer Hermitian and differ from the ones guaranteeing local conservation laws, but remain mutually commuting at different values of the spectral parameter defining the circuit. Exact eigenstates can still be constructed as a Bethe ansatz, but while these transfer matrices are diagonalizable in the inhomogeneous case, the homogeneous limit corresponds to an exceptional point where multiple eigenstates coalesce and Jordan blocks appear. Remarkably, the complete set of (generalized) eigenstates is only obtained when taking into account a combinatorial number of nontrivial vacuum states. In all cases, the Bethe equations reduce to those of the integrable spin-1 chain and exhibit a global SU(2) symmetry, significantly reducing the total number of eigenstates required in the calculation of correlation functions. A similar construction is shown to hold for the calculation of out-of-time-order correlations.
description: 22+8 pages
Post kala-azar dermal leishmaniasis treated with liposomal amphotericin B
Creators: name: Burza, Sakib
name: Boer, Margriet Den
name: Mahajan, Raman
name: Temmy Sunyoto
name: Marıa Angeles Lima
name: Asish Kumar Das
name: Almeida, Patrick
name: Gaurab Mitra
name: A. Be-Nazir
name: Das, Pradeep
name: Ritjmeijer, Koert
Publisher: name: F1000Research
Year: 2015

description: Post Kala Azar Dermal Leishmaniasis (PKDL) is a complication of visceral leishmaniasis. It is common in areas endemic for viral load (VL) caused by L.donovani and is characterised by a skin rash after an episode of VL. In contrast to VL, patients with OKDL are not typically ill, it is not fatal and the main issue is one of aesthetics. However PKDL is a public health problem because it is a major reservoir of L.donovani. PKDL does not self heal and needs to be treated in order to restrict transmission.There is an urgent need for an alternative shorter course treatment for PKDL – AmBisome may be considered an appropriate option.
Weighing the spacetime along the line of sight using times of arrival of electromagnetic signals
Creators: name: Korzyński, Mikołaj
name: Miśkiewicz, Jan
name: Serbenta, Julius
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new method of measuring the mass density along the line of sight, based on precise measurements of the variations of the times of arrival (TOA's) of electromagnetic signals propagating between two distant regions of spacetime. The TOA variations are measured between a number of slightly displaced pairs of points from the two regions. These variations are due to the nonrelativistic geometric effects (Roemer delays and finite distance effects) as well as the gravitational effects in the light propagation (gravitational ray bending and Shapiro delays). We show that from a sufficiently broad sample of TOA measurements we can determine two scalars quantifying the impact of the spacetime curvature on the light propagation, directly related to the first two moments of the mass density distribution along the line of sight. The values of the scalars are independent of the angular positions or the states of motion of the two clock ensembles we use for the measurement and free from any influence of masses off the line of sight. These properties can make the mass density measurements very robust. The downside of the method is the need for extremely precise signal timing.
description: 65 pages, 5 figures. Major revision, App. A and G added, corrections throughout the text
The one-dimensional telegraphic process with noninstantaneous stochastic resetting
Creators: name: Radice, Mattia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we consider the one-dimensional dynamical evolution of a particle traveling at constant speed and performing, at a given rate, random reversals of the velocity direction. The particle is subject to stochastic resetting, meaning that at random times it is forced to return to the starting point. Here we consider a return mechanism governed by a deterministic law of motion, so that the time cost required to return is correlated to the position occupied at the time of the reset. We show that in such conditions the process reaches a stationary state which, for some kinds of deterministic return dynamics, is independent of the return phase. Furthermore, we investigate the first-passage properties of the system and provide explicit formulas for the mean first-hitting time. Our findings are supported by numerical simulations.
description: 21 pages, 8 figures
Study of the exclusive reaction $pp \to pp K^{*0} \bar{K}^{*0}$: $f_{2}(1950)$ resonance versus diffractive continuum
Creators: name: Lebiedowicz, Piotr
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present first predictions of the cross sections and differential distributions for the exclusive reaction $pp \to pp K^{*0} \bar{K}^{*0}$ contributing to the $K^{+} K^{-} π^{+} π^{-}$ channel. The amplitudes for the reaction are formulated within the nonperturbative tensor-pomeron approach. We consider separately the $f_{2}(1950)$ $s$-channel exchange mechanism and the $K^{*0}$ $t/u$-channel exchange mechanism, focusing on their specificities. First mechanism is a candidate for the central diffractive production of tensor glueball and the second one is an irreducible continuum. We adjust parameters of our model, assuming the dominance of pomeron-pomeron fusion, to the WA102 experimental data. We find that including the continuum contribution alone one can describe the WA102 data reasonably well. We present predictions for the reaction $pp \to pp (K^{*0} \bar{K}^{*0} \to K^{+} K^{-} π^{+} π^{-})$ for the ALICE, ATLAS, CMS and LHCb experiments including typical kinematical cuts. We find from our model a cross sections of $σ\cong 17-250$ nb for the LHC experiments, depending on the assumed cuts. Absorption effects are included in our analysis.
description: 21 pages, 7 figures
Commensurate Fluctuations in the Pseudogap and Incommensurate spin-Peierls Phases of TiOCl
Creators: name: Clancy, J. P.
name: Gaulin, B. D.
name: Rule, K. C.
name: Castellan, J. P.
name: Chou, F. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: X-ray scattering measurements on single crystals of TiOCl reveal the presence of commensurate dimerization peaks within both the incommensurate spin-Peierls phase and the so-called pseudogap phase above T_c2. This scattering is relatively narrow in Q-space indicating long correlation lengths exceeding ~ 100 A below T* ~ 130 K. It is also slightly shifted in Q relative to that of the commensurate long range ordered state at the lowest temperatures, and it coexists with the incommensurate Bragg peaks below T_c2. The integrated scattering over both commensurate and incommensurate positions evolves continuously with decreasing temperature for all temperatures below T* ~ 130 K.
description: To appear in Physical Review B: Rapid Communications. 5 pages
Running vacuum against the $H_0$ and $σ_8$ tensions
Creators: name: Sola, Joan
name: Gomez-Valent, Adria
name: Perez, Javier de Cruz
name: Moreno-Pulido, Cristian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
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: The cosmological term, $Λ$, was introduced $104$ years ago by Einstein in his gravitational field equations. Whether $Λ$ is a rigid quantity or a dynamical variable in cosmology has been a matter of debate for many years, especially after the introduction of the general notion of dark energy (DE). $Λ$ is associated to the vacuum energy density, $ρ_{\rm vac}$, and one may expect that it evolves slowly with the cosmological expansion. Herein we present a devoted study testing this possibility using the promising class of running vacuum models (RVM's). We use a large string $SNIa+BAO+H(z)+LSS+CMB$ of modern cosmological data, in which for the first time the CMB part involves the full Planck 2018 likelihood for these models. We test the dependence of the results on the threshold redshift $z_*$ at which the vacuum dynamics is activated in the recent past and find positive signals up to $\sim4.0σ$ for $z_*\simeq 1$. The RVM's prove very competitive against the standard $Λ$CDM model and give a handle for solving the $σ_8$ tension and alleviating the $H_0$ one.
description: Accepted for publication in EPL. Tables 1 and 2 as well as Fig. 2 have been extended and contain now the analysis of the Brans-Dicke model with a cosmological term, which allows direct comparison with the type-II running vacuum model
Attractor Bifurcation of Three-Dimensional Double-Diffusive Convection
Creators: name: Hsia, Chun-Hsiung
name: Ma, Tian
name: Wang, Shouhong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In this article, we present a bifurcation analysis on the double-diffusive convection. Two pattern selections, rectangles and squares, are investigated. It is proved that there are two different types of attractor bifurcations depending on the thermal and salinity Rayleigh numbers for each pattern. The analysis is based on a newly developed attractor bifurcation theory, together with eigen-analysis and the center manifold reductions.
Supergravity with mimetic dark matter
Creators: name: Chamseddine, Ali H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate a supersymmetric version of gravity with mimetic dark matter. The coupling of a constrained chiral multiplet to N=1 supergravity is made locally supersymmetric using the rules of tensor calculus. The chiral multiplet is constrained with a Lagrange multiplier multiplet that could be either a chiral multiplet or a linear multiplet. We obtain the fully supersymmetric Lagrangians in both cases. It is then shown that the system consisting of the supergravity multiplet, the chiral multiplet and the Lagrange multiplier multiplet can break supersymmetry spontaneously leading to a model of a graviton, massive gravitino and two scalar fields representing mimetic dark matter. The combination of the chiral multiplet and Lagrange multiplier multiplet can act as the hidden sector breaking local N=1 supersymmetry.
description: Comments about supersymmetry breaking modified. Version to appear in European Journal of Physics C. 18 pages
Stable pair, tropical, and log canonical compact moduli of del Pezzo surfaces
Creators: name: Hacking, Paul
name: Keel, Sean
name: Tevelev, Jenia
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10; 14E30

description: We give a functorial normal crossing compactification of the moduli of smooth marked cubic surfaces entirely analogous to the Grothendieck-Knudsen compactification $M_{0,n} \subset \bar{M}_{0,n}$.
description: 49 pages, 8 figures. v2: Added section 3 "Iitaka fibration for subvarieties of algebraic tori"
Matching theory: subgraphs with degree constraints and other properties
Creators: name: Nam, Yunsun
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis, three generalizations of the matching problem are considered. The first problem is the existence of matrices with given row and column sums. This problem can be interpreted as the f-factor problem of a bipartite graph. The well-known existence theorem follows from maxfiow-mincut theorem, but it contains an exponential number (in the number of rows) of inequalities. We generalize the Gale-Ryser theorem and obtain some conditions under which this exponential number of inequalities can be reduced to a polynomial number of inequalities. The second problem is the general factor problem. Let G = (V, E) be a multigraph. An arbitrary subset BL, of {O, 1,2,. . . , deg(v)} is assigned to each vertex ʋ E Ʋ. We call a B-factor a spanning subgraph F of G such that deg (ʋ) ∈ Bv for every vertex ʋ ∈ V. A set B is said to have a gap of length p ≥1 if there exists an integer k such that k+ 1,.•.,k+p ∉ Bv, and yet k,k+p+ 1 ∉ Bv. It’s known that the problem is NP-complete if we allow gaps of length more than one. We extend the algorithm of Cornuéjols for simple graphs and obtain a strongly polynomial algorithm for finding a B-factor when each Bv doesn’t have a gap of length 2 or more. A new augmenting walk that need not alternate is introduced. The third problem is the square-free two-factor problem. A square-free two-factor is a two-factor in which the cycles don’t have length 4, i.e. are not squares. We obtain an augmenting path theorem like Berge’s augmenting path theorem for a 1-matching. Also we obtain a polynomial algorithm for finding a square-free two-factor when the squares of G are vertex-disjoint.
Analysis of the vertices $D^*D_sK$, $D^*_sDK$,$D_0D_sK$ and $D_{s0}DK$ with the light-cone QCD sum rules
Creators: name: Wang, Z. G.
name: Wan, S. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we analyze the vertices $D^*D_sK$, $D^*_sDK$, $D_0D_sK$ and $D_{s0}DK$ within the framework of the light-cone QCD sum rules approach in an unified way. The strong coupling constants $G_{D^*D_sK}$ and $G_{D^*_sDK}$ are important parameters in evaluating the charmonium absorption cross sections in searching for the quark-gluon plasmas, our numerical values of the $G_{D^*D_sK}$ and $G_{D^*_sDK}$ are compatible with the existing estimations although somewhat smaller, the SU(4) symmetry breaking effects are very large, about 60%. For the charmed scalar mesons $D_0$ and $D_{s0}$, we take the point of view that they are the conventional $c\bar{u}$ and $c\bar{s}$ mesons respectively, and calculate the strong coupling constants $G_{D_0 D_s K}$ and $G_{D_{s0} D K}$ with the vector interpolating currents. The numerical values of the scalar-$D_sK$ and -$DK$ coupling constants $G_{D_0 D_s K}$ and $G_{D_{s0} D K}$ are compatible with the existing estimations, the large values support the hadronic dressing mechanism. Furthermore, we study the dependence of the four strong coupling constants $G_{D^*D_sK}$, $G_{D^*_sDK}$, $G_{D_0D_sK}$ and $G_{D_{s0}DK}$ on the non-perturbative parameter $a_4$ of the twist-2 $K$ meson light-cone distribution amplitude.
description: 31 pages, 21 figures, 2 tables, Second version
Signatures of deconfined quark phases in binary neutron star mergers
Creators: name: Prakash, Aviral
name: Radice, David
name: Logoteta, Domenico
name: Perego, Albino
name: Nedora, Vsevolod
name: Bombaci, Ignazio
name: Kashyap, Rahul
name: Bernuzzi, Sebastiano
name: Endrizzi, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: (abridged) We investigate the quark deconfinement phase transition in the context of binary neutron star (BNS) mergers. We employ a new finite-temperature composition-dependent equation of state (EOS) with a first order phase transition between hadrons and deconfined quarks to perform numerical relativity simulations of BNS mergers. The softening of the EOS due to the phase transition causes the merger remnants to be more compact and to collapse to a black hole (BH) at earlier times. The phase transition is imprinted on the postmerger gravitational wave (GW) signal duration, amplitude, and peak frequency. However, this imprint is only detectable for binaries with sufficiently long-lived remnants. Moreover, the phase transition does not result in significant deviations from quasi-universal relations for the postmerger GW peak frequency. We also study the impact of the phase transition on dynamical ejecta, remnant accretion disk masses, r-process nucleosynthetic yields and associated electromagnetic (EM) counterparts. While there are differences in the EM counterparts and nucleosynthesis yields between the purely hadronic models and the models with phase transitions, these can be primarily ascribed to the difference in remnant collapse time between the two. An exception is the non-thermal afterglow caused by the interaction of the fastest component of the dynamical ejecta and the interstellar medium, which is systematically boosted in the binaries with phase transition as a consequence of the more violent merger they experience.
description: 28 pages and 16 figures
Understanding the insulating phase in CMR manganites: Shortening of the Jahn-Teller long-bond across the phase diagram of La_{1-x} Ca_x Mn O_3
Creators: name: Bozin, E. S.
name: Schmidt, M.
name: DeConinck, A. J.
name: Paglia, G.
name: Mitchell, J. F.
name: Chatterji, T.
name: Radaelli, P. G.
name: Proffen, Th.
name: Billinge, S. J. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The detailed evolution of the magnitude of the local Jahn-Teller (JT) distortion in La_{1-x} Ca_x Mn O_3 is obtained across the phase diagram for 0 < x < 0.5 from high quality neutron diffraction data using the atomic pair distribution function (PDF) method. A local JT distortion is observed in the insulating phase for all Ca concentrations studied. However, in contrast with earlier local structure studies its magnitude is not constant, but decreases continuously with increasing Ca content. This observation is at odds with a simple small-polaron picture for the insulating state.
description: 4 pages, 4 figures, submitted to Physical Review Letters
Heavy flavor production in pA collisions
Creators: name: Fujii, H.
name: Gelis, F.
name: Venugopalan, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Heavy quark production in high-energy proton-nucleus (pA) collisions is described in the framework of the Color Glass Condensate. kT factorization is broken even at leading order albeit a more general factorization in pA holds at this order in terms of 2, 3 and 4 point correlators of Wilson lines in the nuclear target. The x-evolution of these correlators is computed in the large A and large N mean field limit of the Balitsky-Kovchegov equation. We show results for heavy quark production at RHIC and LHC energies.
description: Talk given at QM2006. 4p
Conserved Quantities for Interacting Four Valent Braids in Quantum Gravity
Creators: name: Hackett, Jonahan
name: Wan, Yidun
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We derive conservation laws from interactions of actively-interacting braid-like excitations of embedded framed spin networks in Quantum Gravity. Additionally we demonstrate that actively-interacting braid-like excitations interact in such a way that the product of interactions involving two actively-interacting braid-like excitations produces a resulting actively-interacting form.
description: To appear in Class Quant. Grav., 19 pages, 7 figures, corrected, ref added
Pulse Width Evolution of Late Time X-rays Flares in GRBs: Evidence For Internal Shocks
Creators: name: Kocevski, Daniel
name: Butler, Nathaniel
name: Bloom, Joshua S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the duration and variability of late time X-ray flares following gamma-ray bursts (GRBs) observed by the narrow field X-ray telescope (XRT) aboard the {\it Swift} spacecraft. These flares are thought to be indicative of late time activity by the central engine that powers the GRB and produced by means similar to those which produce the prompt emission. We use a non-parametric procedure to study the overall temporal properties of the flares and a structure function analysis to look for an evolution of the fundamental variability time-scale between the prompt and late time emission. We find a strong correlation in 28 individual x-ray flares in 18 separate GRBs between the flare duration and their time of peak flux since the GRB trigger. We also find a qualitative trend of decreasing variability as a function of time since trigger, with a characteristic minimum variability timescale $Δt/t=0.1$ for most flares. We interpret these results as evidence of internal shocks at collision radii that are larger than those that produced the prompt emission. Contemporaneous detections of high energy emission by GLAST could be a crucial test in determining if indeed these X-ray flares originate as internal shocks behind the afterglow, as any X-ray emission originating from behind the afterglow is expected to undergo inverse Compton scattering as it passes through the external shock.
description: 26 pages, 5 figures, 1 table. Submitted to ApJ. This work expands upon and formalizes our previous report at the October 2006 AAS HEAD Meeting of the discovery of pulse width evolution
Graviton Resonances in E+ E- -> MU+ MU- at Linear Colliders with Beamstrahlung and ISR Effects
Creators: name: Godbole, Rohini M.
name: Rai, Santosh Kumar
name: Raychaudhuri, Sreerup
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Electromagnetic radiation emitted by the colliding beams is expected to play an important role at the next generation of high energy e^+ e^- linear collider(s). Focusing on the simplest process e+e- -> mu+ mu-, we show that radiative effects like initial state radiation (ISR) and beamstrahlung can lead to greatly-enhanced signals for resonant graviton modes of the Randall-Sundrum model.
description: 20 pages Latex, 7 eps figures
Avoiding bias in cards cryptography
Creators: name: Atkinson, M. D.
name: van Ditmarsch, H. P.
name: Roehling, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Cryptography and Security (cs.CR)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: We outline the need for stricter requirements for unconditionally secure cryptographic protocols inspired by the Russian Cards problem. A new requirement CA4 is proposed that checks for bias in single card occurrence in announcements consisting of alternatives for players' holdings of cards. This requirement CA4 is shown to be equivalent to an alternative requirement CA5. All announcements found to satisfy CA4 are 2-designs. We also show that all binary designs are 3-designs. Instead of avoiding bias in announcements produced by such protocols, one may as well apply unbiased protocols such that patterns in announcements become meaningless. We gave two examples of such protocols for card deal parameters (3,3,1), i.e. two of the players hold three cards, and the remaining player, playing the role of eavesdropper, holds a single card.
description: 11 pages
The existence of optimal singular controls for stochastic differential equations
Creators: name: Suo, Wulin
Publisher: name: University of British Columbia
Year: 2009

description: We study a singular control problem where the state process is governed by an Ito stochastic differential equation allowing both classical and singular coutrols. By reformulating the state equation as a martingale problem on an appropriate canonical space, it is shown, under mild continuity conditions on the data, that an optimal control exists. The dynamic programming principle for the problem is established through the method of conditioning and concatenation. Moreover, it is shown that there exists a family of optimal controls such that the corresponding states form a Markov process. When the data is Lipschitz continuous, the value function is shown to be uniformly con tinuous and to be the unique viscosity solution of the corresponding Hamilton-Jacobi-Bellman variational inequality. We also provide a description of the continuation region, the region in which the optimal state process is continuous, and we show that there exists a family of optimal controls which keeps the state inside the region after a possible initial jump. The last part is independent of the rest of the thesis. Through stretching of time, the singular control problem is transformed into a new problem that involves only classical control. Such problems are relatively well understood. As a result, it is shown that there exists an optimal control where the classical control variable is in Markovian form and the increment of the singular control variable on any time interval is adapted to the state process on the same time interval.
Ιστορική και χωρική ανασκόπηση των πληθυσμιακών εξάρσεων δασικών εντόμων στην Ελλάδα και ανάλυση των αιτιών που τις προκάλεσαν
Creators: name: Πετσόπουλος, Δημήτριος Εμμανουήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2018
Subjects: Δασικά έντομα
Έξαρση
Forest insects
Outbreak
Population Epidemics

description: Η πυκνότητα των πληθυσμών των δασικών εντόμων θεωρείται δυναμική, εμφανίζει παραλλακτικότητα και μεγάλες διακυμάνσεις, πολύ συχνά φτάνοντας πολύ υψηλά επίπεδα. Αυτή η μεγάλη αύξηση της πυκνότητας ονομάζεται έξαρση ή επιδημία. Αν και οι περισσότεροι πληθυσμοί των δασικών εντόμων παραμένουν σε χαμηλά επίπεδα πυκνότητας, πολλές φορές φτάνουν σε επίπεδα εξάρσεων λόγω φυσικών αιτιών. Τα τελευταία χρόνια όμως η παρεμβολή του ανθρώπου στο φυσικό περιβάλλον θεωρείται ότι διαταράζει τους πληθυσμούς των εντόμων και αποτελεί ένα παράγοντα που συμβάλει στην εμφάνιση των εξάρσεων, ιδιαίτερα σημαντική θεωρείται η επιρροή των ανθρώπων στο κλίμα. Στην παρούσα εργασία παρουσιάζονται στοιχεία καταγραφών των εξάρσεων από ιστορικά δεδομένα για μια περίοδο που εκτείνεται 63 χρόνια (1954-2017), γίνεται αναφορά για τις περιοχές και το έτος που εμφανίστηκαν οι εξάρσεις, αλλά και στη πιθανή αιτία που συνέβαλλε στο να φτάσουν σε επίπεδα εξάρσεων. Συνολικά καταγράφτηκαν περισσότερες από 100 εξάρσεις στον Ελληνικό χώρο για πάνω από 10 έντομα αναγνωρισμένα σε επίπεδο είδους εκ των οποίων τα περισσότερα ήταν φυλλοφάγα. Δυστυχώς σε πολλές περιπτώσεις τα δεδομένα ήταν ελλιπή, κάτι που αποδεικνύει τη μη-συστηματική παρακολούθηση των πληθυσμών των εντόμων στην Ελλάδα αλλά αναδεικνύει την ανάγκη που υπάρχει για μια συστηματική και εντατική παρακολούθηση των δασικών εντόμων στη χώρα μας
description: Population density of forest insects can be described as dynamic; it can be characterized by fluctuations, with populations reaching extreme numbers of individuals. Such an increase in the density of populations is known as an outbreak or epidemic. While, the majority of insect populations remain at low or stable densities through the years, natural causes can drive a sudden increase until they reach an outbreak level. In the last decades, human-driven disturbances in the natural environment are regarded as possible factors for insect outbreak occurrences, especially with human impact on climate change. In the following study, we present historical data of outbreaks occurrence through a period of 63 years (1954-2017), the region and year of occurrence is documented while we examine the possible causes which drove the insects reaching high densities. In total, we found more than 100 outbreaks in Greece for more than 10 insects, identified in the species level of which most of them where foliage eaters. Unfortunately there where many cases where the data were insufficient for a detailed analysis, something that proves the non-systematic monitoring of forest insects populations in Greece, but also points out the need for a more systematical and robust monitoring of our forest insect populations
Bayesian-Wilson coefficients in lattice QCD computations of valence PDFs and GPDs
Creators: name: Karthik, Nikhil
name: Sufian, Raza Sabbir
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose an analysis method for the leading-twist operator product expansion based lattice QCD determinations of the valence parton distribution function (PDF). In the first step, we determine the confidence-intervals of the leading-twist $\overline{\mathrm{MS}}$ Wilson coefficients, $C_n(μ^2 z^2)$, of the equal-time bilocal quark bilinear, given the lattice QCD matrix element of Ioffe-time distribution for a particular hadron $H$ as well as the prior knowledge of the valence PDF, $f(x,μ)$ of the hadron $H$ determined via global fit from the experimental data. In the next step, we apply the numerically estimated $C_n$ in the lattice QCD determinations of the valence PDFs of other hadrons, and for the zero-skewness generalized parton distribution (GPD) of the same hadron $H$ at non-zero momentum transfers. Our proposal still assumes the dominance of leading-twist terms, but it offers a pragmatic alternative to the usage of perturbative Wilson coefficients and their associated higher-loop uncertainties such as the effect of all-order logarithms at larger sub-Fermi quark-antiquark separations $z$.
description: 13 pages, 5 figures; published version
Many-Core Architectures: Hardware-Software Optimization and
Modeling Techniques
Creators: name: Pinto, Christian <1986>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: ING-INF/01 Elettronica

description: During the last few decades an unprecedented technological growth has been at the center of the embedded systems design paramount, with Moore’s Law being the leading factor of this trend. Today in fact an ever increasing number of cores can be integrated on the same die, marking the transition from state-of-the-art multi-core chips to the new many-core design paradigm. Despite the extraordinarily high computing power, the complexity of many-core chips opens the door to several challenges. As a result of the increased silicon density of modern Systems-on-a-Chip (SoC), the design space exploration needed to find the best design has exploded and hardware designers are in fact facing the problem of a huge design space. Virtual Platforms have always been used to enable hardware-software co-design, but today they are facing with the huge complexity of both hardware and software systems. In this thesis two different research works on Virtual Platforms are presented: the first one is intended for the hardware developer, to easily allow complex cycle accurate simulations of many-core SoCs. The second work exploits the parallel computing power of off-the-shelf General Purpose Graphics Processing Units (GPGPUs), with the goal of an increased simulation speed. The term Virtualization can be used in the context of many-core systems not only to refer to the aforementioned hardware emulation tools (Virtual Platforms), but also for two other main purposes: 1) to help the programmer to achieve the maximum possible performance of an application, by hiding the complexity of the underlying hardware. 2) to efficiently exploit the high parallel hardware of many-core chips in environments with multiple active Virtual Machines. This thesis is focused on virtualization techniques with the goal to mitigate, and overtake when possible, some of the challenges introduced by the many-core design paradigm.
Free Arrangements over Finite Field
Creators: name: Yoshinaga, Masahiko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C35

description: The freeness of hyperplane arrangements in a three dimensional vector space over finite field is discussed. We prove that if the number of hyperplanes is greater than some bound, then the freeness is determined by the characteristic polynomial.
description: 8 pages
AutoProf -- I. An automated non-parametric light profile pipeline for modern galaxy surveys
Creators: name: Stone, Connor
name: Arora, Nikhil
name: Courteau, Stéphane
name: Cuillandre, Jean-Charles
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present an automated non-parametric light profile extraction pipeline called AutoProf. All steps for extracting surface brightness (SB) profiles are included in AutoProf, allowing streamlined analyses of galaxy images. AutoProf improves upon previous non-parametric ellipse fitting implementations with fit-stabilization procedures adapted from machine learning techniques. Additional advanced analysis methods are included in the flexible pipeline for the extraction of alternative brightness profiles (along radial or axial slices), smooth axisymmetric models, and the implementation of decision trees for arbitrarily complex pipelines. Detailed comparisons with widely used photometry algorithms (photutils, XVISTA, and GALFIT) are presented. These comparisons rely on a large collection of late-type galaxy images from the PROBES survey. The direct comparison of SB profiles shows that AutoProf can reliably extract fainter isophotes than other methods on the same images, typically by >2 mag/arcsec^2. Contrasting non-parametric elliptical isophote fitting with simple parametric models also shows that two-component fits (e.g., Sérsic plus exponential) are insufficient to describe late-type galaxies with high fidelity. It is established that elliptical isophote fitting, and in particular AutoProf, is ideally suited for a broad range of automated isophotal analysis tasks. AutoProf is freely available to the community at: https://github.com/ConnorStoneAstro/AutoProf
description: 18 pages, 20 figures, 1 table, published in MNRAS, latest version includes an expanded section on Fourier perturbed ellipses and complies with MNRAS editorial updates
Managing Pandemics – Demands, Resources, and Effective Behaviors within Crisis Management Teams: Online Supplement
Creators: name: Thielsch, Meinald T.
name: Röseler, Stefan
name: Kirsch, Julia
name: Lamers, Christoph
name: Hertel, Guido
Publisher: name: Zenodo
Year: 2020
Subjects: COVID-19
Crisis Management
Disaster Management
High-Reliability Teams
Teamwork
Demands
Resources

description: This is the online supplement for a study by the University of Muenster, Germany, in cooperation with the State Fire Service Institute NRW, Germany. The study is part of a larger research project and examined demands, resources, and effective behavior withing crisis management teams during the COVID-19 pandemic. Some emergencies – such as the COVID-19 pandemic – are so large that no individual nor any single municipality, organization or even country can handle them alone. These emergencies require multidisciplinary crisis management teams (CMTs). However, most existing CMTs are trained for rather local and temporary emergencies but not for international and long-lasting crises. Moreover, CMT members in a pandemic face additional demands due to unknown characteristics of the disease, and a highly volatile environment. To support and ensure the effectiveness of CMTs, we need to understand how CMT members can successfully cope with these multiple demands. Connecting teamwork research with the job demands and resources approach as starting framework, we conducted structured interviews and critical incident analyses with 144 members of various CMTs during the COVID-19 pandemic. Content analyses revealed both perceived demands as well as perceived resources in CMTs. Moreover, structuring work processes, open, precise and regular communication, and anticipatory, goal-oriented and fast problem solving were described as particularly effective behaviors in CMTs. We illustrate our findings in an integrated model, and derive practical recommendations for the work and future training of CMTs The study was approved by the ethics committee of the Faculty of Psychology & Sports Science of the University of Münster (ID 2020-26-MT) and pre-registered with OSF (https://osf.io/p4wda/). This online supplement includes an appendix with additional information on sample characteristics, the interview guide (in English and German), raw data of quantitative variables and the codebook of variables.
 (Note: The raw data contains only the information of persons who were included in the analysis and have agreed to it. Some demographic information was deleted to ensure anonymity.)
description: This research is part of the project "FIRE: Feedback Instruments for Rescue Force Education - Leadership and Teamwork in High Risk Environments", funded by the State of North Rhine-Westphalia, Germany.
Renormalization Group and Quantum Information
Creators: name: Gaite, Jose
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The renormalization group is a tool that allows one to obtain a reduced description of systems with many degrees of freedom while preserving the relevant features. In the case of quantum systems, in particular, one-dimensional systems defined on a chain, an optimal formulation is given by White's "density matrix renormalization group". This formulation can be shown to rely on concepts of the developing theory of quantum information. Furthermore, White's algorithm can be connected with a peculiar type of quantization, namely, angular quantization. This type of quantization arose in connection with quantum gravity problems, in particular, the Unruh effect in the problem of black-hole entropy and Hawking radiation. This connection highlights the importance of quantum system boundaries, regarding the concentration of quantum states on them, and helps us to understand the optimal nature of White's algorithm.
description: 16 pages, 5 figures, accepted in Journal of Physics A