cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Charmless hadronic B decays involving scalar mesons: Implications to the nature of light scalar mesons
Creators: name: Cheng, Hai-Yang
name: Chua, Chun-Khiang
name: Yang, Kwei-Chou
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The hadronic charmless B decays into a scalar meson and a pseudoscalar meson are studied within the framework of QCD factorization. Although the light scalar mesons $f_0(980)$ and $a_0(980)$ are widely perceived as primarily the four-quark bound states, in practice it is difficult to make quantitative predictions based on the four-quark picture for light scalars. Hence, predictions are made in the 2-quark model for the scalar mesons. Based on the QCD sum rule method, we have derived the leading-twist light-cone distribution amplitudes of scalar mesons and their decay constants. The short-distance approach suffices to explain the observed large rates of $f_0(980)K^-$ and $f_0(980)\bar K^0$ that receive major penguin contributions from the $b\to ss\bar s$ process. When $f_0(980)$ is assigned as a four-quark bound state, there exist extra diagrams contributing to $B\to f_0(980)K$. Therefore, a priori the $f_0(980)K$ rate is not necessarily suppressed for a four-quark state $f_0(980)$. The calculated $\bar B^0\to a_0^+(980)π^-$ and $a_0^+(980)K^-$ rates exceed slightly the current experimental limits. If the branching ratio of $\bar B^0\to a_0^+(1450)π^-$ is measured at the level of $(4\sim 6)\times 10^{-6}$ while $a_0^+(980)π^-$ is found to be smaller, say, of order $(1\sim 2)\times 10^{-6}$ or even smaller than this, it will be likely to imply a 2-quark nature for $a_0(1450)$ and a four-quark assignment for $a_0(980)$. The penguin-dominated modes $a_0(980)K$ and $a_0(1450)K$ receive dominant weak annihilation contributions.
description: 42 pages and 5 figures. Form factors for B to excited scalar mesons are calculated, signs are flipped for the decay constants of excited states (Appendix B), Tables 5 to 9 are revised. Version to appear in PRD
Atomic Mass Dependence of Hadron Production in Deep Inelastic Scattering on Nuclei
Creators: name: Accardi, A.
name: Grunewald, D.
name: Muccifora, V.
name: Pirner, H. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Hadron production in lepton-nucleus deep inelastic scattering is studied in an absorption model. In the proposed model, the early stage of hadronization in the nuclear medium is dominated by prehadron formation and absorption, controlled by flavor-dependent formation lengths and absorption cross sections. Computations for hadron multiplicity ratios are presented and compared with the HERMES experimental data for pions, kaons, protons and antiprotons. The mass-number dependence of hadron attenuation is shown to be sensitive to the underlying hadronization dynamics. Contrary to common expectations for absorption models, a leading term proportional to A^{2/3} is found. Deviations from the leading behavior arise at large mass-numbers and large hadron fractional momenta.
description: 30 pages, 10 figures, v2: minor changes (legend in figs 5 & 6 is added), v3: additional explanations are added, v4: Version combines v3 and the erratum hep-ph/0508036
Unveiling the Boxy Bulge and Bar of the Andromeda Spiral Galaxy
Creators: name: Beaton, Rachael L.
name: Majewski, Steven R.
name: Guhathakurta, Puragra
name: Skrutskie, Michael F.
name: Cutri, Roc M.
name: Good, John
name: Patterson, Richard J.
name: Athanassoula, E.
name: Bureau, Martin
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new, 2.8 deg^2 J,H,K_s infrared survey from the 2MASS 6x program across the extent of the optical disk of the Andromeda (M31) galaxy provides a clear view of the M31 center almost completely unfettered by dust extinction, and reveals a high contrast bulge with extremely boxy isophotes dominating the NIR light to a semi-major axis of ~700''(2.6 kpc). The inner bulge (
description: Suibmitted to Astrophysical Journal Letters
Models for the BPS Berry Connection
Creators: name: Ohya, Satoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Motivated by the Nahm's construction, in this paper we present a systematic construction of Schrödinger Hamiltonians for a spin-1/2 particle where the Berry connection in the ground-state sector becomes the Bogomolny-Prasad-Sommerfield (BPS) monopole of $SU(2)$ Yang-Mills-Higgs theory. Our construction enjoys a single arbitrary monotonic function, thereby creating infinitely many quantum-mechanical models that simulate the BPS monopole in the space of model parameters.
description: 8 pages; minor corrections
Protostellar collapse: A comparison between SPH and AMR calculations
Creators: name: Commercon, Benoit
name: Hennebelle, Patrick
name: Audit, Edouard
name: Chabrier, Gilles
name: Teyssier, Romain
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The development of parallel supercomputers allows today the detailed study of the collapse and the fragmentation of prestellar cores with increasingly accurate numerical simulations. Thanks to the advances in sub-millimeter observations, a wide range of observed initial conditions enable us to study the different modes of low-mass star formation. The challenge for the simulations is to reproduce the observational results. Two main numerical methods, namely AMR and SPH, are widely used to simulate the collapse and the fragmentation of prestellar cores. We compare thoroughly these two methods within their standard framework. We use the AMR code RAMSES and the SPH code DRAGON. Our physical model is as simple as possible and consists of an isothermal sphere rotating around the z-axis. We first study the conservation of angular momentum as a function of the resolution. Then, we explore a wide range of simulation parameters to study the fragmentation of prestellar cores. There seems to be a convergence between the two methods, provided resolution in each case is sufficient. Resolution criteria adapted to our physical cases, in terms of resolution per Jeans mass, for an accurate description of the formation of protostellar cores are deduced from the present study. This convergence is encouraging for future work in simulations of low-mass star formation, providing the aforementioned criteria are fulfilled. Higher resolution figures can be downloaded at http://www-dapnia.cea.fr/Projets/COAST/paper_amrvssph.pdf
description: 16 pages, 16 figures, accepted for publication in A&A
Characterization of non-signaling correlations from mutual information
Creators: name: Perito, Ignacio
name: Bellomo, Guido
name: Galicer, Daniel
name: Figueira, Santiago
name: Roncaglia, Augusto J.
name: Bendersky, Ariel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a characterization of the set of non-signaling correlations in terms of a two dimensional representation that involves the maximal value of a Bell functional and the mutual information between the parties. In particular, we apply this representation to the bipartite Bell scenario with two measurements and two outcomes. In terms of these physically meaningful quantities and through numerical optimization methods and some analytical results, we investigate the frontier between the different subsets of the non-signaling correlations, focussing on the quantum and post-quantum ones. Finally, we show that the Tsirelson bound appears as a singular point in this context without resorting to quantum mechanics.
description: 9 pages, 9 figures
Assessment Activity of 210Po and 210Pb in the Edible Tissues of Cultured Seabass (Lates calcarifer) at Peninsular Malaysia
Creators: name: Noorliza Zakaria
name: Afiza Suriani Sarimin
name: Asnor Azrin Sabuti
name: Mohamed, Che Abd Rahim
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: 210Po,210Pb,sea bass,daily intake,committed effective dose

description: 1, 6, EnvironmentAsia
Prediction of Groundwater Arsenic Contamination using Geographic Information System and Artificial Neural Network
Creators: name: Md. Moqbul Hossain
name: Neaupane, Krishna
name: Nitin Kumar Tripathi
name: Mongkut Piantanakulchai
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: arsenic,contamination,groundwater,ANN,GIS,pH

description: 1, 6, EnvironmentAsia
Determination of the Emission Factors from Burning Common Domestic Cooking Fuels in Vietnam and its Application for Calculation of their Pollution Load
Creators: name: Pham Ngoc Ho
name: Con, Tran Hong
name: Loan, Dong Kim
name: Bach, Duong Ngoc
name: Pham Thi Viet Anh
name: Ly, Luong Thi Mai
name: Pham Thi Thu Ha
name: Nguyen Khac Long
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: cooking fuel,emission factor,pollution load

description: 1, 6, EnvironmentAsia
The Management of Capital Allocation for Sustainable Municipal Solid Waste Management System: A Case Study of Bang Saen, Thailand
Creators: name: Iwase, Daichi
name: Sittipong Dilokwanich
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: capital allocation,sustainable municipal solid waste management system,Bang Saen,Thailand

description: 1, 6, EnvironmentAsia
Phosphorus Sorption Capacity of Concrete Waste, Natural Sorbents, Alum Residuals from Water Supply Sludge, and Ceramic Material for Tertiary Treatment in Onsite Systems
Creators: name: Siriporn Larpkiattaworn
name: Nut Pookerdsin
name: Mathurot Wangchanachai
name: Pongsak Noophan
Publisher: name: Thai Society of Higher Education Institutes on Environment
Year: 2013
Subjects: phosphorus sorption,concrete waste,shells,alum residuals from water treatment sludge,clay,kaolin,mordenite,ceramic material

description: 1, 6, EnvironmentAsia
Thermopower across the phase diagram of the cuprate La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$ : signatures of the pseudogap and charge-density-wave phases
Creators: name: Collignon, C.
name: Ataei, A.
name: Gourgout, A.
name: Badoux, S.
name: Lizaire, M.
name: Legros, A.
name: Licciardello, S.
name: Wiedmann, S.
name: Yan, J. -Q.
name: Zhou, J. -S.
name: Ma, Q.
name: Gaulin, B. D.
name: Doiron-Leyraud, Nicolas
name: Taillefer, Louis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Seebeck coefficient (thermopower) $S$ of the cuprate superconductor La$_{1.6-x}$Nd$_{0.4}$Sr$_x$CuO$_4$ was measured across its doping phase diagram (from $p = 0.12$ to $p = 0.25$), at various temperatures down to $T \simeq 2$ K, in the normal state accessed by suppressing superconductivity with a magnetic field up to $H = 37.5$ T. The magnitude of $S/T$ in the $T=0$ limit is found to suddenly increase, by a factor $\simeq 5$, when the doping is reduced below $p^{\star} = 0.23$, the critical doping for the onset of the pseudogap phase. This confirms that the pseudogap phase causes a large reduction of the carrier density $n$, consistent with a drop from $n = 1 + p$ above $p^{\star}$ to $n = p$ below $p^{\star}$, as previously inferred from measurements of the Hall coefficient, resistivity and thermal conductivity. When the doping is reduced below $p = 0.19$, a qualitative change is observed whereby $S/T$ decreases as $T \to 0$, eventually to reach negative values at $T=0$. In prior work on other cuprates, negative values of $S/T$ at $T \to 0$ were shown to result from a reconstruction of the Fermi surface caused by charge-density-wave (CDW) order. We therefore identify $p_{\rm CDW} \simeq 0.19$ as the critical doping beyond which there is no CDW-induced Fermi surface reconstruction. The fact that $p_{\rm CDW}$ is well separated from $p^{\star}$ reveals that there is a doping range below $p^{\star}$ where the transport signatures of the pseudogap phase are unaffected by CDW correlations, as previously found in YBa$_2$Cu$_3$O$_y$ and La$_{2-x}$Sr$_x$CuO$_4$.
description: Present version includes a comparison with new x-ray data on Nd-LSCO by Gupta et al., arXiv:2012.08450. 13 pages, 12 figures, includes SM file
Massive Primordial Black Holes in Hybrid Inflation
Creators: name: Rubin, S. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Black hole formation in the framework of hybrid inflation is considered. It is shown that this model of inflation provides conditions for multiple black hole production.
description: 6 pages, 1 figure
Text: Story of the Devil Mountain
Creators: name: Umenda, Carlos
name: Dabkowski, Maksymilian
name: Aguinda, Shen
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: con

description: The volcano Dzûnzdûkhu was only for women (as a house for women), whereas the volcano Reventado was for men. The devils used to hang around before, and finally a religious man came and saw that the two volcanoes were going to join and planted a cross in Dzûnzdûkhu. The two volcanoes kept on growing and they were going to touch like a circle. They stole children from women.
EDGE: A new approach to suppressing numerical diffusion in adaptive mesh simulations of galaxy formation
Creators: name: Pontzen, Andrew
name: Rey, Martin P.
name: Cadiou, Corentin
name: Agertz, Oscar
name: Teyssier, Romain
name: Read, Justin I.
name: Orkney, Matthew D. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We introduce a new method to mitigate numerical diffusion in adaptive mesh refinement (AMR) simulations of cosmological galaxy formation, and study its impact on a simulated dwarf galaxy as part of the 'EDGE' project. The target galaxy has a maximum circular velocity of 21 km/s but evolves in a region which is moving at up to 90 km/s relative to the hydrodynamic grid. In the absence of any mitigation, diffusion softens the filaments feeding our galaxy. As a result, gas is unphysically held in the circumgalactic medium around the galaxy for 320 Myr, delaying the onset of star formation until cooling and collapse eventually triggers an initial starburst at z=9. Using genetic modification, we produce 'velocity-zeroed' initial conditions in which the grid-relative streaming is strongly suppressed; by design, the change does not significantly modify the large scale structure or dark matter accretion history. The resulting simulation recovers a more physical, gradual onset of star formation starting at z=17. While the final stellar masses are nearly consistent ($4.8 \times 10^6\,M_\odot$ and $4.4\times 10^6\,M_\odot$ for unmodified and velocity-zeroed respectively), the dynamical and morphological structure of the z=0 dwarf galaxies are markedly different due to the contrasting histories. Our approach to diffusion suppression is suitable for any AMR zoom cosmological galaxy formation simulations, and is especially recommended for those of small galaxies at high redshift.
description: Accepted for publication in MNRAS following minor clarifications. Added an appendix on velocity correlation length
Improvvisare la verità. Musica jazz e discorso filosofico
Creators: name: Pollastri, Neri
Publisher: name: Università degli Studi di Milano
Year: 2015

description: Improvisation is specific of some arts, like jazz music, but, as a practice, it is part of almost all complex human practices, included the professional ones, because of the role it plays in transforming and developing them. Improvisation plays an important role even in philosophical discourse, whose process is comparable with the jazz music process. However, in both fields a circularity arises, which creates a problem concerning the validity and the normativity of their whole processes. A reflection on the two fields suggests some possible solution paths.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
Combining Semilattices and Semimodules
Creators: name: Bonchi, Filippo
name: Santamaria, Alessio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We describe the canonical weak distributive law $δ\colon \mathcal S \mathcal P \to \mathcal P \mathcal S$ of the powerset monad $\mathcal P$ over the $S$-left-semimodule monad $\mathcal S$, for a class of semirings $S$. We show that the composition of $\mathcal P$ with $\mathcal S$ by means of such $δ$ yields almost the monad of convex subsets previously introduced by Jacobs: the only difference consists in the absence in Jacobs's monad of the empty convex set. We provide a handy characterisation of the canonical weak lifting of $\mathcal P$ to $\mathbb{EM}(\mathcal S)$ as well as an algebraic theory for the resulting composed monad. Finally, we restrict the composed monad to finitely generated convex subsets and we show that it is presented by an algebraic theory combining semimodules and semilattices with bottom, which are the algebras for the finite powerset monad $\mathcal P_f$.
Improvvisare una stabilità senza equilibrio. La complessità come antidoto all’uomo automatico.
Creators: name: Sisto, Davide
Publisher: name: Università degli Studi di Milano
Year: 2015

description: The present essay aims at showing how the continuous improvement of biotechnology and nanotechnology causes an artificial redesign of human nature. This artificial redesign implies the idea of homo cyborg, the concept of which, as developed by some post-human movements, sees man as future maker of himself. The distinguishing features of homo cyborg are the autonomy of rationality and the rejection of physical limitations. The present essay is articulated in the following three parts: 1) analysis of the main points of view which mark the contemporary rationalistic and systematic hermeneutics of man and his behaviors; 2) illustration of the impossibility for this hermeneutics to adhere to the essence of life, the peculiarity of which exceeds the interpretative prerogative of man; 3) explanation of the concepts of “indeterminateness” and “crossroad” as keywords of human nature, that preserve creativity and improvisation as fundamental pedagogical means of improvement of human ability.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
Per un Illuminismo semovente
Creators: name: Duque, Félix
Publisher: name: Università degli Studi di Milano
Year: 2015

description: Enlightenment is not only a movement that happened in history and that would have just left a trace in it, but is also a self-moving process which constitutes our own history. And we respond to this process with an attitude of changing conjugation of times, and an always precarious embodiment of a useful fiction for collective live, what we call democracy. In addition to this, the expressions that surround the exaggerated name Enlightenment (Illuminismo, in Italian) show the intention of the essay: to defend the current appropriateness and the encouragement of a left-wing intellectual attitude.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
Pseudo-Hermiticity and some consequences of a generalized quantum condition
Creators: name: Bagchi, B.
name: Quesne, C.
name: Roychoudhury, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We exploit the hidden symmetry structure of a recently proposed non-Hermitian Hamiltonian and of its Hermitian equivalent one. This sheds new light on the pseudo-Hermitian character of the former and allows access to a generalized quantum condition. Special cases lead to hyperbolic and Morse-like potentials in the framework of a coordinate-dependent mass model.
description: 10 pages, no figure
The halo mass function and inner structure of ETHOS haloes at high redshift
Creators: name: Bohr, Sebastian
name: Zavala, Jesús
name: Cyr-Racine, Francis-Yan
name: Vogelsberger, Mark
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the halo mass function and inner halo structure at high redshifts ($z\geq5$) for a suite of simulations within the structure formation ETHOS framework. Scenarios such as cold dark matter (CDM), thermal warm dark matter (WDM), and dark acoustic oscillations (DAO) of various strengths are contained in ETHOS with just two parameters $h_{\rm peak}$ and $k_{\rm peak}$, the amplitude and scale of the first DAO peak. The Extended Press-Schechter (EPS) formalism with a smooth-$k$ filter is able to predict the cut-off in the halo mass function created by the suppression of small scale power in ETHOS models (controlled by $k_{\rm peak}$), as well as the slope at small masses that is dependent on $h_{\rm peak}$. Interestingly, we find that DAOs introduce a localized feature in the mass distribution of haloes, resulting in a mass function that is distinct in shape compared to either CDM or WDM. We find that the halo density profiles of ${\it all}$ ETHOS models are well described by the NFW profile, with a concentration that is lower than in the CDM case in a way that is regulated by $k_{\rm peak}$. We show that the concentration-mass relation for DAO models can be well approximated by the mass assembly model based on the extended Press-Schechter theory, which has been proposed for CDM and WDM elsewhere. Our results can be used to perform inexpensive calculations of the halo mass function and concentration-mass relation within the ETHOS parametrization without the need of $N-$body simulations.
description: 11 pages, 12 figures; Updated version accepted for publication in MNRAS
La debole forza messianica dell’improvvisazione. Per un nuovo paradigma dell’agire
Creators: name: Cuozzo, Gianluca
Publisher: name: Università degli Studi di Milano
Year: 2015

description: The themes of improvisation and of unfulfillment share many traits. Both take a stand against the «absolute norm» imposed by the technocratic consumer society; both re-explore discarded options in search for a brand new solution. Accordingly, action (including political action) must be reconsidered in light of the theme of reversibility, what Italo Calvino and Michelangelo have shown us about the process of artistic creation. Further confirmation of this is offered by Luigi Pareyson’s theory of formativity.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
Suppression of inelastic bound state resonance effects by the dimensionality of atom-surface scattering event
Creators: name: Siber, A.
name: Gumhalter, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop a multidimensional coupled channel method suitable for studying the interplay of bound state resonance and phonon assisted scattering of inert gas atoms from solid surfaces in one, two and three dimensions. This enables us to get insight into the features that depend on the dimensionality of inelastic resonant processes typically encountered in low energy He atom scattering from surfaces, in general, and to elaborate on the observability of recently conjectured near threshold resonances in scattering from Einstein phonons, in particular.
description: 2 figures
L’etica dell’improvvisazione come pratica filosofica. Gli esercizi spirituali da Pierre Hadot a George Lewis
Creators: name: Ferrari, Silvia
Publisher: name: Università degli Studi di Milano
Year: 2015

description: Moving from an analysis of the techniques of the self in the capitalist neo-liberalism, the paper will show a possibility of resistance in retreat: Foucault and Hadot show how the turn to ancient philosophy constitutes a way to build historical ontology of ourselves and aesthetic of the existence. The necessary search for new spiritual exercises will lead to examining jazz improvisation.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
La norma e la libertà: la sfida etica di Paul Ricoeur
Creators: name: Furia, Paolo
Publisher: name: Università degli Studi di Milano
Year: 2015

description: This paper deals with the relation between freedom and norm in the practical philosophy of Paul Ricoeur, taking into account especially the “Little Ethics” that covers Studies VII, VIII, IX of Oneself as Another. Although Ricoeur states the priority of ethics over moral, playing the quest for good and happiness off against deontological morality of duty, it soon appears clear that the norm is necessarily implied by the development of ethics itself. No actual freedom can exist without norm; but, on the other and, no normative system is absolute, because the quest for good, in which freedom consists, cannot be fulfilled by any norm. This is the reason why it is always possible, and in some cases necessary, to act not following the established rules, but by improvisational conducts that can answer to the needs of the given situations. Aim of the article is to show the relevance of creativity for Ricoeur’s theory of action, but also to highlight the fact that creativity is not grounded on itself, but is linked to an infinite ethical ambition that give sense to improvisation.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
Revisiting an isospectral extension of the Morse potential
Creators: name: Quesne, C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: A very simple method is devised to derive a (strictly) isospectral extension of the Morse potential. Furthermore, point canonical transformations are used to transform the latter into quasi-exactly solvable extensions of the radial oscillator and the Coulomb potentials.
description: 12 pages, no figure, published version
SNoRe: Scalable Unsupervised Learning of Symbolic Node Representations
Creators: name: Mežnar, Sebastian
name: Lavrač, Nada
name: Škrlj, Blaž
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Learning from complex real-life networks is a lively research area, with recent advances in learning information-rich, low-dimensional network node representations. However, state-of-the-art methods are not necessarily interpretable and are therefore not fully applicable to sensitive settings in biomedical or user profiling tasks, where explicit bias detection is highly relevant. The proposed SNoRe (Symbolic Node Representations) algorithm is capable of learning symbolic, human-understandable representations of individual network nodes, based on the similarity of neighborhood hashes which serve as features. SNoRe's interpretable features are suitable for direct explanation of individual predictions, which we demonstrate by coupling it with the widely used instance explanation tool SHAP to obtain nomograms representing the relevance of individual features for a given classification. To our knowledge, this is one of the first such attempts in a structural node embedding setting. In the experimental evaluation on eleven real-life datasets, SNoRe proved to be competitive to strong baselines, such as variational graph autoencoders, node2vec and LINE. The vectorized implementation of SNoRe scales to large networks, making it suitable for contemporary network learning and analysis tasks.
description: Accepted to IEEEAccess
Loki, Io: New groundbased observations and a model describing the change from periodic overturn
Creators: name: Rathbun, Julie A.
name: Spencer, John R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Loki Patera is the most powerful volcano in the solar system. We have obtained measurements of Loki's 3.5 micron brightness from NASA's Infrared Telescope Facility (IRTF) and have witnessed a change from the periodic behavior previously noted. While Loki brightened by a factor of several every 540 days prior to 2001, from 2001 through 2004 Loki remained at a constant, medium brightness. We have constructed a quantitative model of Loki as a basaltic lava lake whose solidified crust overturns when it becomes buoyantly unstable. By altering the speed at which the overturn propagates across the patera, we can match our groundbased brightness data. In addition, we can match other data taken at other times and wavelengths. By slowing the propagation speed dramatically, we can match the observations from 2001-2004. This slowing may be due to a small change in volatile content in the magma.
Il problema dell’ontologia del diritto tra vocazione al sistema e razionalitá teleologica
Creators: name: Vernacotola Gualtieri D’Ocre, Antonio
Publisher: name: Università degli Studi di Milano
Year: 2015

description: This paper aims to address the problem of the ontology of law investigating the foundation of the systematic nature that belongs to it as a legal system bearer of an “order”. For this purpose, taking in a comparative consideration three different models, the positivism, the axiological-constitutional one and the classical-metaphysical one, subjects such as the person, the teleological rationality and the natural law are analyzed and discussed in their foundational value and in their specific function.
description: Itinera, No 10 (2015): Sistema e libertà. Razionalità e improvvisazione tra filosofia, arte e pratiche umane.
Nature paper "Quantized Majorana conductance", report from independent experts
Creators: name: Brouwer, Piet
name: Ensslin, Klaus
name: Goldhaber-Gordon, David
name: Lee, Patrick
Publisher: name: Zenodo
Year: 2021

description: In 2020 serious concerns were raised by members of the scientific community regarding some of the conclusions reached by this publication in Nature. The four of us were contacted by the TU Delft to provide advice on this issue. The authors provided us access to unpublished data available to them prior to publication. This public version of our report focuses on the scientific methodology and interpretation, in light of the data and the theoretical background available to the authors at the time of submission. In particular, we aim to provide a snapshot of that timeframe, and pay minimal attention to more recent theoretical developments that may influence the authors’ current thinking. We also do not consider subsequent experimental findings, except inasmuch as they shed light on the thinking prior to publication. The conclusions and opinions stated are those of the authors and not of their institutions.
Fault characterization and testing of digital current mode logic circuits
Creators: name: Devdas, Vikram
Publisher: name: University of British Columbia
Year: 2009

description: The research reported in this dissertation describes a new approach to test differential current- mode logic (CML) circuits. The tests described in this thesis have been developed for high-speed digital interface circuits, such as multiplexors and demultiplexers, used in the telecom/ datacom industry. However, these tests are generic, and can be applied to any kind of current-mode logic circuit. To the authors' best knowledge, the test algorithms described in this thesis have not been previously proposed or used in the area of differential CML integrated circuit testing. The fault simulation and fault grading results show that the proposed test methodology is able to achieve a very high fault coverage and thereby exhibits an attractive and cost effective solution for CML testing.
Adiabatic geometric phases in hydrogenlike atoms
Creators: name: Sjöqvist, Erik
name: Yi, X. X.
name: Åberg, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the effect of spin-orbit coupling on geometric phases in hydrogenlike atoms exposed to a slowly varying magnetic field. The marginal geometric phases associated with the orbital angular momentum and the intrinsic spin fulfill a sum rule that explicitly relates them to the corresponding geometric phase of the whole system. The marginal geometric phases in the Zeeman and Paschen-Back limit are analyzed. We point out the existence of nodal points in the marginal phases that may be detected by topological means.
description: Clarifying material added, one figure removed, journal reference added
Short-Lived Forward-Secure Delegation for TLS
Creators: name: Alber, Lukas
name: More, Stefan
name: Ramacher, Sebastian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: On today's Internet, combining the end-to-end security of TLS with Content Delivery Networks (CDNs) while ensuring the authenticity of connections results in a challenging delegation problem. When CDN servers provide content, they have to authenticate themselves as the origin server to establish a valid end-to-end TLS connection with the client. In standard TLS, the latter requires access to the secret key of the server. To curb this problem, multiple workarounds exist to realize a delegation of the authentication. In this paper, we present a solution that renders key sharing unnecessary and reduces the need for workarounds. By adapting identity-based signatures to this setting, our solution offers short-lived delegations. Additionally, by enabling forward-security, existing delegations remain valid even if the server's secret key leaks. We provide an implementation of the scheme and discuss integration into a TLS stack. In our evaluation, we show that an efficient implementation incurs less overhead than a typical network round trip. Thereby, we propose an alternative approach to current delegation practices on the web.
description: This is the full version of a paper which appears in 2020 Cloud Computing Security Workshop (CCSW '20), November 9, 2020, Virtual Event, USA, ACM
CaptuRING 3D components.
Creators: name: Alonso-Gómez, Víctor
name: García-Hidalgo, Miguel
Publisher: name: Zenodo
Year: 2022

description: Basic 3D models for CaptuRING Digitization tool. - Sample holder system: Jaws_upper_nut, Jaws_lower_nut, Jaws_main, Jaws_sample_holder. - Rail adapter: Linear_guide.
Isospin Symmetry Breaking in B->K^* γDecay due to an Extra Generation of Vector Quarks
Creators: name: Ahmady, Mohammad R.
name: Chishtie, Farrukh
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The extra contributions due to an extra generation of vector-like quarks to the isospin symmetry breaking observable associated with the radiative B->K^* γdecay is obtained. It is shown that this additional contribution is sensitive to the nonunitarity parameter U^{sb}, which is a measure of the the strength of the non-zero tree-level flavor changing neutral current in this model. The significance of this result is that, once accurate experimental resultson the isospin asymmetry becomes available, one can constrain the U^{sb} independent of the mass of the extra quarks and so a much more stringent acceptablemodel parameter space could be obtained.
description: 16 pages, 8 figures, To appear in the proceedings of the MRST 2005 conference
El DoraDo - A revolving elevator café
Creators: name: Kim, Min Tae
Publisher: name: figshare
Year: 2021
Subjects: subject: 120101 Architectural Design
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 120299 Building not elsewhere classified
subject: FOS: Civil engineering
subject: 120302 Design Innovation

description: This article is a detailed summary of the book, El DoraDo – A revolving elevator café available at amozon.com. I thought it would be fun if there is a lounge café in the free space between the twin towers, and if the café revolves as it moves up and down like an elevator. While the outside landscape is constantly changing and revolving, we listen to music over a cup of coffee, appreciate the interior decoration and props, and see the exterior scenery as if we were watching a panoramic movie. “El DoraDo” implies everything that characterizes our café. The first word “El” stands for “Elevator,” and the second part “Dora” means “turn” in Korean. Do(島), written in Chinese, naturally means an island. We have to cross a bridge to get to this island. Our El DoraDo is also reminiscent of Spanish El Dorado, meaning “the golden place”, and is often used to refer to a utopia. As “El” also means “The” in Spanish, we do not add “The” to our El DoraDo. It is just “El DoraDo.”
Broad excitations in a 2+1D overoccupied gluon plasma
Creators: name: Boguslavski, K.
name: Kurkela, A.
name: Lappi, T.
name: Peuron, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Motivated by the initial stages of high-energy heavy-ion collisions, we study excitations of far-from-equilibrium 2+1 dimensional gauge theories using classical-statistical lattice simulations. We evolve field perturbations over a strongly overoccupied background undergoing self-similar evolution. While in 3+1D the excitations are described by hard-thermal loop theory, their structure in 2+1D is nontrivial and nonperturbative. These nonperturbative interactions lead to broad excitation peaks in spectral and statistical correlation functions. Their width is comparable to the frequency of soft excitations, demonstrating the absence of soft quasiparticles in these theories. Our results also suggest that excitations at higher momenta are sufficiently long-lived, such that an effective kinetic theory description for 2+1 dimensional Glasma-like systems may exist, but its collision kernel must be nonperturbatively determined.
description: 33 pages, 11 figures; v2: extended Introduction and Conclusion, references added, published version
Nucleation and step-edge barriers always destabilize step-flow growth of a vicinal surface
Creators: name: Vilone, Daniele
name: Castellano, Claudio
name: Politi, Paolo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the effect of nucleation on a one-dimensional stepped surface, finding that step-flow growth is metastable for any strength of the additional step-edge barrier. The surface is made unstable by the formation of a critical nucleus, whose lateral size is related to the destabilization process on a high-symmetry surface. Arguments based on a critical nucleus of height two, which suggest the existence of a fully stable regime for small barrier, fail to describe this phenomenon.
description: 10 pages, 4 figures. One figure added and discussion of the critical nucleus revised. Accepted for publication on Surface Science Letters
Vacuum fermionic currents in braneworld models on AdS bulk with a cosmic string
Creators: name: Bellucci, S.
name: Santos, W. Oliveira dos
name: de Mello, E. R. Bezerra
name: Saharian, A. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the effects of a brane and magnetic-flux-carrying cosmic string on the vacuum expectation value (VEV) of the current density for a charged fermionic field in the background geometry of 4+1 dimensional anti-de Sitter (AdS) spacetime. The brane is parallel to the AdS boundary and the cosmic string is orthogonal to the brane. Two types of boundary conditions are considered on the brane that include the MIT bag boundary condition and the boundary conditions in Z2-symmetric braneworld models. The brane divides the space into two regions with different properties of the vacuum state. The only nonzero component of the current density is along the azimuthal direction and in both the regions the corresponding VEV is decomposed into the brane-free and brane-induced contributions. The latter vanishes on the string and near the string the total current is dominated by the brane-free part. At large distances from the string and in the region between the brane and AdS horizon the decay of the brane-induced current density, as a function of the proper distance, is power-law for both massless and massive fields. For a massive field this behavior is essentially different from that in the Minkowski bulk. In the region between the brane and AdS boundary the large-distance decay of the current density is exponential. Depending on the boundary condition on the brane, the brane-induced contribution is dominant or subdominant in the total current density at large distances from the string. By using the results for fields realizing two inequivalent irreducible representations of the Clifford algebra, the vacuum current density is investigated in C- and P-symmetric fermionic models. Applications are given for a cosmic string in the Randall-Sundrum-type braneworld model with a single brane.
description: JHEP, in press, 29 pages, 11 figures, 1 table, Keywords: Cosmic string, AdS space, Brane, Vacuum polarization
Far-Ultraviolet & X-ray Observations of VV 114: Feedback in a Local Analog to Lyman Break Galaxies
Creators: name: Grimes, J. P.
name: Heckman, T.
name: Hoopes, C.
name: Strickland, D.
name: Aloisi, A.
name: Meurer, G.
name: Ptak, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analyzed FUSE, XMM, and Chandra observations of VV 114, a local galaxy merger with strong similarities to typical high-redshift Lyman Break Galaxies (LBGs). Diffuse thermal X-ray emission encompassing VV114 has been observed by Chandra and XMM. This region of hot (kT~0.59 keV) gas has an enhanced alpha to iron element ratio relative to solar abundances and follows the same relation as typical starbursts between its properties (luminosity, size, and temperature) and those of the starburst galaxy (star formation rate, dust temperature, galaxy mass). These results are consistent with the X-ray gas having been produced by shocks driven by a galactic superwind. The FUSE observations of VV 114 show strong, broad interstellar absorption lines with a pronounced blueshifted component(similar to what is seen in LBGs). This implies an outflow of material moving at 300-400 km/s relative to VV 114. The properties of the strong OVI absorption line are consistent with radiative cooling at the interface between the hot outrushing gas seen in X-rays and the cooler material seen in the other outflowing ions in the FUSE data. We show that the wind in VV114 has not created a ``tunnel'' that enables more than a small fraction (< few percent) of the ionizing photons from VV114 to escape into the IGM. Taken together, these data provide a more complete physical basis for understanding the outflows that seem to be generic in LBGs. This will lead to improved insight into the role that such outflows play in the evolution of galaxies and the inter-galactic medium.
description: 33 pages, 13 figures
The Boardman-Vogt resolution of operads in monoidal model categories
Creators: name: Berger, Clemens
name: Moerdijk, Ieke
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: Primary 18D50; Secondary 18G55, 55U35

description: We extend the W-construction of Boardman and Vogt to operads of an arbitrary monoidal model category with suitable interval, and show that it provides a cofibrant resolution for well-pointed sigma-cofibrant operads. The standard simplicial resolution of Godement as well as the cobar-bar chain resolution are shown to be particular instances of this generalised W-construction.
Plane and Stripe Wave Phases of a Spin-Orbit Coupled Bose-Einstein Condensate in an Optical Lattice with a Zeeman Field
Creators: name: Mæland, Kristian
name: Janssønn, Andreas T. G.
name: Rygh, Jonas H.
name: Sudbø, Asle
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A weakly interacting, spin-orbit coupled, ultracold, dilute Bose gas on a two-dimensional square lattice with an external Zeeman field is studied. We explore the plane and stripe wave phases of the system involving nonzero condensate momenta, which occur when the Zeeman field is below a critical value. Their excitation spectra are found using Bogoliubov theory and by two different routes. The validity of each method to obtain the excitation spectrum is discussed, and it is found that projection on the lowest single-particle band is an excellent approximation in the plane wave phase, while it is a poor approximation in the stripe wave phase. While the plane wave phase has a phonon minimum at its single condensate momentum, revealing a nonzero sound velocity of the excitations, the stripe wave phase has quadratic minima at its two condensate momenta showing zero sound velocity of the excitations. We discuss how the presence of more than one condensate momentum is essential for these differences between the two phases. Additionally, it is emphasized that the zero sound velocity in the stripe wave phase is a lattice effect, since continuum studies of the same phase have shown nonzero sound velocity.
description: 12 pages, 6 figures, accepted in Physical Review A
Voraussetzungen und Aspekte für eine ökumenische Kooperation - vor allem im Blick auf eine größere Stadt
Creators: name: Bauer, Anton
name: Kreyssig, Peter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 36 Nr. 1 (1987): Ökumenische Rundschau, Band 36, Heft 1
Stochastic dissociation of diatomic molecules
Creators: name: Kenfack, Anatole
name: Rost, Jan M
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The fragmentation of diatomic molecules under a stochastic force is investigated both classically and quantum mechanically, focussing on their dissociation probabilities. It is found that the quantum system is more robust than the classical one in the limit of a large number of kicks. The opposite behavior emerges for a small number of kicks. Quantum and classical dissociation probabilities do not coincide for any parameter combinations of the force. This can be attributed to a scaling property in the classical system which is broken quantum mechanically.
description: 5 pages, 1 figure, accepted by J Chem Phys