cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Scalable Reinforcement-Learning-Based Neural Architecture Search for Cancer Deep Learning Research
Creators: name: Balaprakash, Prasanna
name: Egele, Romain
name: Salim, Misha
name: Wild, Stefan
name: Vishwanath, Venkatram
name: Xia, Fangfang
name: Brettin, Tom
name: Stevens, Rick
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Cancer is a complex disease, the understanding and treatment of which are being aided through increases in the volume of collected data and in the scale of deployed computing power. Consequently, there is a growing need for the development of data-driven and, in particular, deep learning methods for various tasks such as cancer diagnosis, detection, prognosis, and prediction. Despite recent successes, however, designing high-performing deep learning models for nonimage and nontext cancer data is a time-consuming, trial-and-error, manual task that requires both cancer domain and deep learning expertise. To that end, we develop a reinforcement-learning-based neural architecture search to automate deep-learning-based predictive model development for a class of representative cancer data. We develop custom building blocks that allow domain experts to incorporate the cancer-data-specific characteristics. We show that our approach discovers deep neural network architectures that have significantly fewer trainable parameters, shorter training time, and accuracy similar to or higher than those of manually designed architectures. We study and demonstrate the scalability of our approach on up to 1,024 Intel Knights Landing nodes of the Theta supercomputer at the Argonne Leadership Computing Facility.
description: SC '19: IEEE/ACM International Conference on High Performance Computing, Networking, Storage and Analysis, November 17--22, 2019, Denver, CO
The Primitive Eulerian polynomial
Creators: name: Bastidas, Jose
name: Hohlweg, Christophe
name: Saliola, Franco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C35, 05A05

description: We introduce the Primitive Eulerian polynomial $P_{\cal A}(z)$ of a central hyperplane arrangement ${\cal A}$. It is a reparametrization of its cocharacteristic polynomial. Previous work of the first author implicitly show that, for simplicial arrangements, $P_{\cal A}(z)$ has nonnegative coefficients. For reflection arrangements of type A and B, the same work interprets the coefficients of $P_{\cal A}(z)$ using the (flag)excedance statistic on (signed) permutations. The main result of this article is to provide an interpretation of the coefficients of $P_{\cal A}(z)$ for all simplicial arrangements only using the geometry and combinatorics of ${\cal A}$.
 This new interpretation sheds more light to the case of reflection arrangements and, for the first time, gives combinatorial meaning to the coefficients of the Primitive Eulerian polynomial of the reflection arrangement of type D. In type B, we find a connection between the Primitive Eulerian polynomial and the $1/2$-Eulerian polynomial of Savage and Viswanathan (2012). We present some real-rootedness results and conjectures for $P_{\cal A}(z)$.
description: 30 pages, 11 figures. Comments welcome
Disabled Access for Museum Websites
Creators: name: Bowen, Jonathan P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences
subject: H.1.2;H.3.5;H.3.7;H.5.1;H.5.2;H.5.3;H.5.4;I.7.2;K.5.0

description: Physical disabled access is something that most museums consider very seriously. Indeed, there are normally legal requirements to do so. However, online disabled access is still a relatively novel field. Most museums have not yet considered the issues in depth. The Human-Computer Interface for their websites is normally tested with major browsers, but not with specialist browsers or against the relevant accessibility and validation standards. We consider the current state of the art in this area and mention an accessibility survey of some museum websites.
description: 2 pages, see http://www2003.org/cdrom/papers/poster/p335/p335-bowen.html
On some rational piecewise linear rotations
Creators: name: Cima, Anna
name: Gasull, Armengol
name: Mañosa, Víctor
name: Mañosas, Francesc
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C25, 39A23, 37B10

description: We study the dynamics of the piecewise planar rotations $F_λ(z)=λ(z-H(z)), $ with $z\in\C$, $H(z)=1$ if $\mathrm{Im}(z)\ge0,$ $H(z)=-1$ if $\mathrm{Im}(z)<0,$ and $λ=\mathrm{e}^{i α} \in\C$, being $α$ a rational multiple of $π$. Our main results establish the dynamics in the so called regular set, which is the complementary of the closure of the set formed by the preimages of the discontinuity line. We prove that any connected component of this set is open, bounded and periodic under the action of $F_λ$, with a period $\ell,$ that depends on the connected component. Furthermore, $F_λ^\ell $ restricted to each component acts as a rotation with a period which also depends on the connected component. As a consequence, any point in the regular set is periodic. Among other results, we also prove that for any connected component of the regular set, its boundary is a convex polygon with certain maximum number of sides.
description: 15 pages; 6 figures
Towards a semi-classical description of QCD vacuum around $T_c$
Creators: name: Larsen, Rasmus N.
name: Sharma, Sayantan
name: Shuryak, Edward
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the vacuum topology of 2+1 flavor QCD above the chiral crossover transition, at $T \lesssim 1.2~T_c$, on lattices of size $32^3\times 8$. Since overlap fermions have exact chiral symmetry and an index theorem even on a finite lattice, we use them to detect the topological content of gauge fields generated using domain wall fermion discretization for quarks. We further use different periodicity phases along the temporal direction for the valence overlap quarks, which allows us to probe different topological structures present in the gauge field ensembles, through its zero modes. This procedure provides strong evidences that fermion zero-modes can be quantitatively understood to arise due to different species of instanton-dyons. We estimate their relative abundances from the Dirac-eigenvalue density and resolve the so called "topological clusters" via multi-parameter fits to their density, providing therefore an understanding of the interactions between instanton-dyons. The typical separation between dyons we obtain, is $\sim 0.3$ fm. Surprisingly, it emerges out from this study that a semi-classical description of the fermionic zero modes in the QCD vacuum is quite accurate just above $T_c$.
description: 14 pages, 11 Figures
Cavinula maculata Potapova, Cvetkoska, Hamilton & Levkov 2014, sp. nov.
Creators: name: Cvetkoska, Aleksandra
name: Levkov, Zlatko
name: Hamilton, Paul B.
name: Potapova, Marina
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Chromista
Bacillariophyta
Bacillariophyceae
Naviculales
Cavinulaceae
Cavinula
Cavinula maculata

description: Cavinula maculata Potapova, Cvetkoska, Hamilton & Levkov sp. nov. (Figs 193 –204)
Valves elliptic-lanceolate with rounded apices. Valve face flat, sharply bent (not gradually curved) at margin onto mantle. Valve length 25–41 µm, width 15–20 µm with 20–25 stria in 10 µm. Striae radiate throughout; a few shortened striae may be present around central area. Striae uniseriate, composed of fine, rounded to elliptic areolae, 20–25 in 10 µm. Internally, interstriae slightly elevated and areolae covered with hymenes. Axial area narrow, linear. Central area large circular or transversely elliptic. Central nodule elevated internally. Raphe linear; externally, proximal and the distal raphe ends pinhole-shaped; distal raphe ends do not extend onto valve mantle (i.e. terminate on the valve face). Internally, raphe positioned on elevated sternum; distal raphe fissures terminate with a helictoglossa. Copulae open, with one row of pores.
 Type: — SOUTH CAROLINA, USA: Toms Creek near Gadsden, collection date: May 8, 1997, collected by B.L. Porter (holotype! slide ANSP GC59003, holotype! designated here, holotype specimen = Fig. 198; isotypes CANA 93669).
 Etymology: —The specific epithet (maculata) refers to the thickened central nodule that often appears as a dark spot in LM.
 Differential diagnosis:–– Cavinula maculata most resembles C. scutiformis in size, striae orientation, and enlarged and thickened central nodule. The valve outline of C. maculata is, however, elliptic-lanceolate rather than elliptic as in C. scutiformis, striae are much denser, and central area is conspicuously larger. The axial area is also narrower and linear. Areolae around central area in C. scutiformis are usually transversely elongated, while they are small and circular in C. maculata.
 Distribution:–– C. maculata is so far known from its type locality, Toms Creek, South Carolina, from Meyers Creek near Hopkins, South Carolina (ANSP sample GC024185, slide ANSP GC103271a), and from Perkins Branch, Delaware (ANSP sample DE000158, slide ANSP GC 115038b). Water chemistry data are available for two South Carolina sites. In 1997, when samples were collected, pH in these creeks ranged from 4.4–5.6, conductivity from 28–68 µS/cm, and nutrient concentrations were low.
description: Published as part of Cvetkoska, Aleksandra, Levkov, Zlatko, Hamilton, Paul B. & Potapova, Marina, 2014, The biogeographic distribution of Cavinula (Bacillariophyceae) in North America with the descriptions of two new species, pp. 181-207 in Phytotaxa 184 (4) on page 203, DOI: 10.11646/phytotaxa.184.4.1, http://zenodo.org/record/5146714
NNLO corrections to the total cross section for Higgs boson production in hadron-hadron collisions
Creators: name: Ravindran, V.
name: Smith, J.
name: van Neerven, W. L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the next-to-next-to-leading order (NNLO) corrections to the total cross section for (pseudo-) scalar Higgs boson production using an alternative method than those used in previous calculations. All QCD partonic subprocesses have been included and the computation is carried out in the effective Lagrangian approach which emerges from the standard model by taking the limit $m_t \to \infty$ where $m_t$ denotes the mass of the top quark. Our results agree with those published earlier in the literature. We estimate the theoretical uncertainties by comparing the $K$-factors and the variation with respect to the mass factorization/renormalization scales with the results obtained by lower order calculations. We also investigate the dependence of the cross section on several parton density sets provided by different groups. Further we study which part of the coefficient functions dominates the cross section. This is of interest for the resummation of large corrections which occur near the boundary of phase space. It turns out that depending on the definition of the total cross section the latter is dominated by the the soft-plus-virtual gluon corrections represented by $δ(1-x)$ and $(\ln^i(1-x)/(1-x))_+$ terms. PACS numbers: 12.38.-t, 12.38.Bx, 13.85.-t, 14.80.Gt.
description: 61 pages, LaTeX, 15 postscript figures. With respect to the previous version a more thorough comparison is made between two definitions of the soft plus virtual gluon approximation. Misprints are corrected and references are changed. Figs. 8a, 9a are changed into Figs. 8,9 respectively and Figs. 8b, 9b are dropped
Ab initio insights on the ultrafast strong-field dynamics of anatase TiO$_2$
Creators: name: B, Sruthil Lal S.
name: Lokamani
name: Ramakrishna, Kushal
name: Cangi, Attila
name: Murali, D
name: Posselt, Matthias
name: Devi, Assa Aravindh Sasikala
name: Sharan, Alok
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electron dynamics of anatase TiO$_2$ under the influence of ultrashort and intense laser field is studied using the real-time time-dependent density functional theory (TDDFT). Our findings demonstrate the effectiveness of TDDFT calculations in modeling the electron dynamics of solids during ultrashort laser excitation, providing valuable insights for designing and optimizing nonlinear photonic devices. We analyze the perturbative and non-perturbative responses of TiO$_2$ to 30 fs laser pulses at 400 and 800 nm wavelengths, elucidating the underlying mechanisms. At 400 nm, ionization via single photon absorption dominates, even at very low intensities. At 800 nm, we observe ionization through two-photon absorption within the intensity range of $1\times10^{10}$ to $9\times10^{12}$ W/cm$^2$, with a transition from multiphoton to tunneling ionization occurring at $9\times10^{12}$ W/cm$^2$. We observe a sudden increase in energy and the number of excited electrons beyond $1\times10^{13}$ W/cm$^2$, leading to their saturation and subsequent laser-induced damage. We estimate the damage threshold of TiO$_2$ for 800 nm to be 0.1 J/cm$^2$. In the perturbative regime, induced currents exhibit a phase shift proportional to the peak intensity of the laser pulse. This phase shift is attributed to the intensity-dependent changes in the number of free carriers, indicative of the optical Kerr effect. Leveraging the linear dependence of phase shift on peak intensities, we estimate the nonlinear refractive index ($n_2$) of TiO$_2$ to be $3.54\times10^{-11}$ cm$^2$/W.
description: 27 Pages (Including 3 pages of supplemental material), 7 figures
Modular Invariant Soft Breaking, WMAP, Dark Matter and Sparticle Mass Limits
Creators: name: Chattopadhyay, Utpal
name: Nath, Pran
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An analysis of soft breaking under the constraint of modular invariance is given. The role of dilaton and moduli dependent front factors in achieving a modular invariant $V_{soft}$ is emphasized. Further, it is shown that in string models $\tanβ$ is no longer a free parameter but is determined in terms of $α_{string}$ and the other soft parameters by the constraints of modular invariance and radiative electroweak symmetry breaking. The above framework is then used to analyze the neutralino relic density consistent with the WMAP data at self dual points in the Kahler and complex structure moduli. One finds that the combined set of constraints arising from modular invariant soft breaking, radiative electroweak symmetry breaking and WMAP lead to upper limits on sparticle masses for $μ>0$. These limits are investigated for a class of models and found to lie within reach of the Tevatron and of the Large Hadron Collider (LHC). Further, an analysis of the neutralino-proton cross section shows that dark matter in these models can be explored in CDMS (Soudan), GENIUS and ZEPLIN. While the analysis is carried out within the general framework of heterotic strings, the possibility that the results of the analysis may extend to a broader class of string models, such as models based on intersecting D branes, is also discussed.
description: 29 pages, 10 figures
Exploring the Bitcoin Mesoscale
Creators: name: Vallarano, Nicolò
name: Squartini, Tiziano
name: Tessone, Claudio J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Cryptography and Security (cs.CR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The open availability of the entire history of the Bitcoin transactions opens up the possibility to study this system at an unprecedented level of detail. This contribution is devoted to the analysis of the mesoscale structural properties of the Bitcoin User Network (BUN), across its entire history (i.e. from 2009 to 2017). What emerges from our analysis is that the BUN is characterized by a core-periphery structure a deeper analysis of which reveals a certain degree of bow-tieness (i.e. the presence of a Strongly-Connected Component, an IN- and an OUT-component together with some tendrils attached to the IN-component). Interestingly, the evolution of the BUN structural organization experiences fluctuations that seem to be correlated with the presence of bubbles, i.e. periods of price surge and decline observed throughout the entire Bitcoin history: our results, thus, further confirm the interplay between structural quantities and price movements observed in previous analyses.
description: 17 pages, 11 figures
Aulacoseira veraluciae Tremarin, Torgan & T. Ludwig 2014, sp. nov.
Creators: name: Tremarin, Priscila Izabel
name: Ludwig, Thelma Alvim Veiga
name: Torgan, Lezilda Carvalho
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Coscinodiscophyceae
Aulacoseirales
Aulacoseiraceae
Aulacoseira
Aulacoseira veraluciae

description: Aulacoseira veraluciae Tremarin, Torgan & T. Ludwig, sp. nov. (Figs 2‒35)
 Holotype:— UPCB 76037, Diatom Collection of the Herbarium of Universidade Federal do Paraná, Brazil, illustrated here in Fig. 21.
 Isotype:— BM 101711 (The Natural History Museum, England).
 Type locality:— BRAZIL. State of Rio Grande do Sul, Tapes and Mostardas municipalities, Patos lake, 30º23’S / 50º41’W to 32º07’S / 52º12’W, phytoplankton, collected from 07 January 1988 by L.C. Torgan.
 Etymology:—The new species is named in honor of Dr. Vera Lúcia de Moraes Huszar of National Museum, Rio de Janeiro Federal University, for her dedication to phytoplankton research.
 Description: — Cells solitary or joined by short spines to form short or long chains, straight or slightly curved. Valve diameter 3–15 µm, mantle height 4–12 µm. Mantle height/diameter ratio 0.35–2.01. Separation valves with face flat, totally or partially covered by areolae and mantle with deep longitudinal depressions formed by the spine insertion of the adjacent cell. Separation spines attenuate and long (ca. 3‒8 µm in length), one to five per valve, intercalate by other smaller and conical spines, one spine for every two interstriae. Linking valves with a flat face, perforated by marginal areolae that extend into the mantle through the marginal spines. Linking spines short, broadly spathulate with smooth edge, one spine for every two interstriae. Valve mantle usually ornamented by small knobs. Collum narrow, height 0.8‒1.1 µm. Pervalvar rows of areolae straight, 10‒16 in 10 µm. Areolae triangular close to marginal spines become rounded in the middle region of the mantle and elongate near the collum, 10‒15 in 10 µm, occluded by cribra. Ringleiste deep and thick, width1.6‒2.3 µm, protruding into the cell with reinforced rim. One to three rimoportulae above the inner side of the ringleiste. Other rimoportulae near the valve face/mantle junction in the separation and linking valves. External opening of rimoportulae associated with an areola, and not visible in LM. Internal opening of rimoportulae elongate and without stalk. Girdle bands with prominent ligula and finely perforated by round porous, ca. 10‒13 in 1 µm. Valvocopulae fimbriate. Auxospore with 12‒15 µm diameter.
description: Published as part of Tremarin, Priscila Izabel, Ludwig, Thelma Alvim Veiga & Torgan, Lezilda Carvalho, 2014, Aulacoseira veraluciae sp. nov. (Coscinodiscophyceae, Aulacoseiraceae): a common freshwater diatom from Brazil, pp. 208-222 in Phytotaxa 184 (4) on pages 215-218, DOI: 10.11646/phytotaxa.184.4.2, http://zenodo.org/record/5146746
An Unsupervised Generative Neural Approach for InSAR Phase Filtering and Coherence Estimation
Creators: name: Mukherjee, Subhayan
name: Zimmer, Aaron
name: Sun, Xinyao
name: Ghuman, Parwant
name: Cheng, Irene
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Phase filtering and pixel quality (coherence) estimation is critical in producing Digital Elevation Models (DEMs) from Interferometric Synthetic Aperture Radar (InSAR) images, as it removes spatial inconsistencies (residues) and immensely improves the subsequent unwrapping. Large amount of InSAR data facilitates Wide Area Monitoring (WAM) over geographical regions. Advances in parallel computing have accelerated Convolutional Neural Networks (CNNs), giving them advantages over human performance on visual pattern recognition, which makes CNNs a good choice for WAM. Nevertheless, this research is largely unexplored. We thus propose "GenInSAR", a CNN-based generative model for joint phase filtering and coherence estimation, that directly learns the InSAR data distribution. GenInSAR's unsupervised training on satellite and simulated noisy InSAR images outperforms other five related methods in total residue reduction (over 16.5% better on average) with less over-smoothing/artefacts around branch cuts. GenInSAR's Phase, and Coherence Root-Mean-Squared-Error and Phase Cosine Error have average improvements of 0.54, 0.07, and 0.05 respectively compared to the related methods.
description: to be published in a future issue of IEEE Geoscience and Remote Sensing Letters
The Origin of Jovian Planets in Protostellar Disks: The Role of Dead Zones
Creators: name: Matsumura, Soko
name: Pudritz, Ralph E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The final masses of Jovian planets are attained when the tidal torques that they exert on their surrounding protostellar disks are sufficient to open gaps in the face of disk viscosity, thereby shutting off any further accretion. In sufficiently well-ionized disks, the predominant form of disk viscosity originates from the Magneto-Rotational Instability (MRI) that drives hydromagnetic disk turbulence. In the region of sufficiently low ionization rate -- the so-called dead zone -- turbulence is damped and we show that lower mass planets will be formed. We considered three ionization sources (X-rays, cosmic rays, and radioactive elements) and determined the size of a dead zone for the total ionization rate by using a radiative, hydrostatic equilibrium disk model developed by Chiang et al. (2001). We studied a range of surface mass density (Sigma_{0}=10^3 - 10^5 g cm^{-2}) and X-ray energy (kT_{x}=1 - 10 keV). We also compared the ionization rate of such a disk by X-rays with cosmic rays and find that the latter dominate X-rays in ionizing protostellar disks unless the X-ray energy is very high (5 - 10 keV). Among our major conclusions are that for typical conditions, dead zones encompass a region extending out to several AU -- the region in which terrestrial planets are found in our solar system. Our results suggest that the division between low and high mass planets in exosolar planetary systems is a consequence of the presence of a dead zone in their natal protoplanetary disks. We also find that the extent of a dead zone is mainly dependent on the disk's surface mass density. Our results provide further support for the idea that Jovian planets in exosolar systems must have migrated substantially inwards from their points of origin.
description: 28 pages, 10 figures, accepted by ApJ
title: Urbanistica e vita quotidiana. Il punto di vista dell'abitare
Creators: name: Cellamare, Carlo
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2019
Subjects: città; abitare; vita quotidiana

description: Il contributo ricostruisce un possibile percorso di transdisciplinarietà a partire dal rapporto tra urbanistica e vita quotidiana e assumendo il punto di vista dell’abitare. Se il compito dell’urbanistica è di dare una risposta all’obiettivo di migliorare le condizioni di vita degli abitanti, molto bisogna ancora fare ed è ancor più necessario allargare gli orizzonti disciplinari, innovare le categorie interpretative, gli approcci e le metodologie, appellarsi alla collaborazione con altre discipline, lasciarsene contaminare, sperimentare percorsi appunto transdisciplinari. La transdisciplinarietà ha un carattere induttivo, viene cioè costruita a partire dallo specifico campo di ricerca, dall’obiettivo di cercare le cose importanti per la vita delle persone e dalla necessità di rispondere alle domande sociali emergenti. Il contributo illustra alcune esperienze di ricerca che hanno sviluppato tale percorso di costruzione della transdisciplinarietà e conclude con alcuni corollari riferiti ai rapporti con i grandi processi strutturali, con i valori e con la politica. The paper reconstructs a possible path of transdisciplinarity starting from the relationship between urban planning and everyday life and assuming the point of view of living. If the task of urban planning is to give an answer to the objective of improving the living conditions of the inhabitants, much still needs to be done. It is even more necessary to broaden the disciplinary horizons, to innovate the interpretative categories, the approaches and the methodologies, to appeal to the collaboration with other disciplines, let them be contaminated, experiment with precisely transdisciplinary paths. Transdisciplinarity has an inductive character. It is built starting from the specific field of research, from the objective of looking for the things that are important for people's lives and from the need to respond to emerging social questions. The paper illustrates some research experiences that have developed this transdisciplinary construction path and concludes with some corollaries referring to relations with large structural processes, values and politics.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, N. 6 (2020): La città interdisciplinare. Per itinerari non tracciati tra saperi urbani / The interdisciplinary city. Untracked itineraries of/for urban knowledges
Dynamics of a classical gas including dissipative and mean field effects
Creators: name: Pedri, P.
name: Guéry-Odelin, D.
name: Stringari, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: By means of a scaling ansatz, we investigate an approximated solution of the Boltzmann-Vlasov equation for a classical gas. Within this framework, we derive the frequencies and the damping of the collective oscillations of a harmonically trapped gas and we investigate its expansion after release of the trap. The method is well suited to studying the collisional effects taking place in the system and in particular to discussing the crossover between the hydrodynamic and the collisionless regimes. An explicit link between the relaxation times relevant for the damping of the collective oscillations and for the expansion is established.
description: 4 pages, 1 figure
title: On interdisciplinarity and non-disciplinary research: a conversation
Creators: name: Pizzo, Barbara
name: Rolnik, Raquel
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2019
Subjects: Urban studies, interdisciplinarity, non-disciplinary research, research methods

description: Barbara Pizzo in conversation with Raquel Rolnik. Aim of this special issue of Tracce Urbane is to critically explore the issue of interdisciplinarity for Planning and Urban Studies. To practice forms of interdisciplinarity is a fundamental goal of the research group which launched this journal, and the journal itself was born to cross and overcome disciplinary boundaries, thus the necessity arises to explicit discuss this issue.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, N. 6 (2020): La città interdisciplinare. Per itinerari non tracciati tra saperi urbani / The interdisciplinary city. Untracked itineraries of/for urban knowledges
Effect of the relativistic spin rotation on two--particle spin composition
Creators: name: Lednicky, R.
name: Lyuboshitz, V. L.
name: Lyuboshitz, V. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effect of the relativistic spin rotation on two--particle spin states, conditioned by the setting of the spins of the particles in their rest frames and by the noncommutativity of the Lorentz transformations along noncolinear directions, is discussed. Particularly, the transition from the c.m.s. of two spin-1/2 particles to the laboratory is considered. When the vectors of the c.m.s. particle velocities are not colinear with the velocity vector of the c.m.s., the angles of the relativistic spin rotation for the two particles are different. As a result, the relative fractions of the singlet and triplet states in the relativistic system of two spin-1/2 particles depend on the concrete frame in which the two-particle system is analyzed.
description: 4 pages, RevTex; improved wording, reference [5] updated and reference [10] added; a version to appear in Proceedings of the 10-th Workshop on High Energy Spin Physics, Spin'03, Dubna, 16-20 September 2003
title: An historical and critical reconstruction of disciplines and interdisciplinarity in urban studies
Creators: name: Pizzo, Barbara
name: Gribat, Nina
name: Höhne, Stefan
name: Michel, Boris
name: Schuster, Nina
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2019
Subjects: Urban studies, interdisciplinarity, cultural history

description: The paper offers a reconstruction of the origins of disciplines particularly in German-speaking countries, through the contributions of Jacob Christoph Burckhardt, Friedrich Engels, George Simmel, Camillo Sitte, Max Weber, just to name a few, and the way in which their work shaped cultures and systematizations of knowledge. Using a dialogical form, scholars with different education discuss how and when different interests and stream of researches crystallized into disciplines, and how and when they have approached or moved away from each other over time depending on the predominance of questions or problems, but also in relation with changes in the political context or even for ideological reasons.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, N. 6 (2020): La città interdisciplinare. Per itinerari non tracciati tra saperi urbani / The interdisciplinary city. Untracked itineraries of/for urban knowledges
G+++ and Brane Solutions
Creators: name: Cook, Paul P.
name: West, Peter C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate that the very extended G+++ group element of the form $g_A=\exp(-{\frac{1}{(β,β)}\ln N}β\cdot H)\exp((1-N)E_β)$ describes the usual BPS, electric, single brane solutions found in G+++ theories.
description: One new equation, added references, corrected typos and minor changes, 42 pages, 6 figures, LaTeX2e
title: Habitus settoriali. Da cosa partire per un’azione integrata sui territori?
Creators: name: Betti, Lorenzo
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2019
Subjects: politiche integrate; istituzioni; habitus

description: Il testo, andando ad indagare un caso specifico d’implementazione di una politica che si pone l’obiettivo di lavorare nella riduzione delle diseguaglianze socio-economiche di un territorio fragile, evidenzia alcuni meccanismi organizzativi che limitano un’azione pubblica integrata. Nonostante la letteratura scientifica e la produzione legislativa pongano molta rilevanza nell’integrazione delle politiche tra i vari settori dell’amministrazione pubblica e tra quest’ultima e il territorio – in special modo quando si parla di territori fragili – attraverso questo contributo si renderanno evidenti alcuni meccanismi organizzativi e di habitus che riproducono settorializzazioni e distanze tecnico-disciplinari. Sarà sulla presenza di questi habitus che si propone di riflettere nella produzione e nell’implementazione di politiche territoriali. The article, analysing a place-based policy aimed at reducing socio-economic inequalities in a fragile context, underlines how organizational processes may hinder an integrate public action. Even if scientific literature and legislative acts identify policy integration between public administration sectors and between public administration and the territory as strategic – especially in a fragile territory – this paper will illustrate some organizational processes and habitus that reproduce technical and disciplinary sector-based distance. I propose to reflect on the presence of that habitus as key issues for a production and implementation of an integrated place-based public policy.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, N. 6 (2020): La città interdisciplinare. Per itinerari non tracciati tra saperi urbani / The interdisciplinary city. Untracked itineraries of/for urban knowledges
Energy transfer and locality in magnetohydrodynamic turbulence
Creators: name: Verma, Mahendra K.
name: Ayyer, Arvind
name: Chandra, Amar V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Astrophysics (astro-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The shell-to-shell energy transfer rates for magnetohydrodynamic (MHD) turbulence are computed analytically, which shows local energy transfer rates from velocity to velocity, velocity to magnetic, magnetic to velocity, and magnetic to magnetic fields for nonhelical MHD in the inertial range. It is also found that for kinetic-energy dominated MHD fluid, there is a preferential shell-to-shell energy transfer from kinetic to magnetic energy; the transfer is reversed for magnetic-energy dominated MHD fluid. This property is the reason for the asymptotic value of Alfven ratio to be close to 0.5. The analytical results are in close agreement with recent numerical results. When magnetic and kinetic helicities are turned on, the helical contributions are opposite to the corresponding nonhelical contributions. The helical energy transfers have significant nonlocal components.
description: 10 pages Revtex4, 4 Figures
Unidentified EGRET Sources
Creators: name: Romero, G. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A brief summary of the main properties of the unidentified gamma-ray sources detected by EGRET is presented, with particular emphasis on the different populations and their phenomenological characteristics.
description: Summary of an invited talk at the tenth Marcel Grossmann meeting. 3 pages
Statistical mechanics of the mixed majority-minority game with random external information
Creators: name: De Martino, A.
name: Giardina, I.
name: Mosetti, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the asymptotic macroscopic properties of the mixed majority-minority game, modeling a population in which two types of heterogeneous adaptive agents, namely ``fundamentalists'' driven by differentiation and ``trend-followers'' driven by imitation, interact. The presence of a fraction f of trend-followers is shown to induce (a) a significant loss of informational efficiency with respect to a pure minority game (in particular, an efficient, unpredictable phase exists only for f<1/2), and (b) a catastrophic increase of global fluctuations for f>1/2. We solve the model by means of an approximate static (replica) theory and by a direct dynamical (generating functional) technique. The two approaches coincide and match numerical results convincingly.
description: 19 pages, 3 figures
Antibiotic Enteric Resistant Bacteria are Abundant on Lettuce from Urban Agriculture in the City of Yaounde
Creators: name: Bougnom, Blaise
Publisher: name: figshare
Year: 2021
Subjects: subject: 60504 Microbial Ecology
subject: FOS: Biological sciences

description: Paper reporting the presence of enteric drug resistant bacteria on lettuce from urban agriculture in the city of Yaounde
title: Urbanistica come pratica di ricerca interdisciplinare. Note a partire da due esperienze di ricerca
Creators: name: Di Giovanni, Andrea
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2019
Subjects: urbanistica; inter-disciplinarità; complessità.

description: Il testo sviluppa una riflessione sugli statuti e sulle pratiche disciplinari a partire dall’urbanistica, assunta come campo di studio e di pratica da sempre e costitutivamente aperto al contributo e al confronto con altre discipline. Anche in relazione al carattere molteplice ed evolutivo delle forme di relazione tra saperi e competenze, il contributo propone una sintesi relativa alle specifiche forme e definizioni possibili dell’interazione tra discipline.In conclusione vengono presentate alcune riflessioni più puntuali sugli aspetti implicati dalla ricerca interdisciplinare nel campo degli studi urbani a partire da due esperienze in corso. This paper considers the multiple interactions among several practices and statutes of different disciplines starting from urbanism, taken as a field of study and practice that has always and constitutively been open to the contribution and comparison with other disciplines.Referring to the multiple and evolutionary character of the relationship between knowledge and skills, the essay proposes a brief consideration of the specific forms and possible definitions of the interaction between disciplines.In a final part the paper presents some more specific reflections on the aspects implied by the interdisciplinary research in the field of urban studies starting from two ongoing experiences.
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, N. 6 (2020): La città interdisciplinare. Per itinerari non tracciati tra saperi urbani / The interdisciplinary city. Untracked itineraries of/for urban knowledges
Dynamical Systems Analysis of $f(R, L_m)$ Gravity Model
Creators: name: Shukla, Aman
name: Raushan, Rakesh
name: Chaubey, Raghavendra
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article, we examine the dynamical evolution of flat FRW cosmological model in $f(R, L_m)$ gravity theory. We consider the general form of $f(R, L_m)$ defined as $f(R, L_m) = Λ+ \fracα{2} R + βL_m^n$, where $Λ$, $α$, $β$, $n$ are model parameters, with the matter Lagrangian given by $L_m = -p$. We investigate the model through phase plane analysis, actively studying the evolution of cosmological solutions using dynamical systems techniques. To analyse the evolution equations, we introduce suitable transformations of variables and discuss the corresponding solutions by phase-plane analysis. The nature of critical points is analysed and stable attractors are examined for $f(R, L_m)$ gravity cosmological model. We examine the linear and classical stability of the model and discuss it in detail. Further, we investigate the transition stage of the Universe, i.e. from the early decelerating stage to the present accelerating phase of the Universe by evolution of the effective equation of state, $\{r,s\}$ parameters and statefinder diagnostics for the central values of parameters $α, β$ and $n$ constrained using MCMC technique with cosmic chronometer data.
description: 22 pages, 14 figures
MOESM1 of Predictors of historical change in drug treatment coverage among people who inject drugs in 90 large metropolitan areas in the USA, 1993â€“2007
Creators: name: Tempalski, Barbara
name: Williams, Leslie
name: West, Brooke
name: Cooper, Hannah
name: Beane, Stephanie
name: Umedjon Ibragimov
name: Friedman, Samuel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Computational Biology

description: Additional file 1: Table S1. Bivariate correlation matrix among all variables. Table S2. Estimated drug treatment coverage rates. Table S3. Results from Full Multi-Domain Mixed-Effects Model by Domain.
TobiiGlassesPySuite: An open-source suite for using the Tobii Pro Glasses 2 in eye-tracking studies
Creators: name: De Tommaso, Davide
name: Wykowska, Agnieszka
Publisher: name: arXiv
Year: 2019
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: In this paper we present the TobiiGlassesPySuite, an open-source suite we implemented for using the Tobii Pro Glasses 2 wearable eye-tracker in custom eye-tracking studies. We provide a platform-independent solution for controlling the device and for managing the recordings. The software consists of Python modules, integrated into a single package, accompanied by sample scripts and recordings. The proposed solution aims at providing additional methods with respect to the manufacturer's software, for allowing the users to exploit more the device's capabilities and the existing software. Our suite is available for download from the repository indicated in the paper and usable according to the terms of the GNU GPL v3.0 license.
Equity-Driven fiscal Policies: Taxing Ultra-Processed products and subsidizing minimally processed foods
Creators: name: Pereda, Paula Carvalho
name: Ng, Shu Wen
name: Duran, Ana Clara
name: Moz-Christofoletti, Maria Alice
name: da Costa Louzada, Maria Laura
Publisher: name: Elsevier
Year: 2024

description:
Promoting individual health and enhancing the global food system requires prioritizing healthy and sustainable food choices. The escalating consumption of ultra-processed products (UPP) in many countries significantly contribute to the obesity epidemic and associated diseases, alongside posing environmental challenges as these products are claimed to increase natural resource use, greenhouse gas emissions and agrobiodiversity loss. To address these problems, nations are adopting market-based strategies, such as adding or elevated taxes on specific UPPs, and promoting the consumption of minimally processed foods such as fruits and vegetables (FV). These initiatives are particularly relevant since the COVID-19 pandemic and recent conflicts have resulted in significant shifts in the relative prices of such foods. Using an Almost Ideal Demand System (AIDS), we assess the impact of four fiscal policy scenarios on household food purchases, nutritional quality, and financial dynamics. These scenarios involve UPP-only taxes, an FV subsidy, and a combination of both. Our findings highlight that a 20% UPP tax, coupled with a 20% FV subsidy, substantially enhance nutrition. Stratifying by income levels, we find similar relative costs for lower- and higher-income households. Although the combined UPP tax and FV subsidy reduces harmful nutrient consumption by 2.2 to 8.0%, it incurs a 0.32% consumer welfare loss for Brazilian households. Despite this, the FV subsidy remains the most equity-enhancing option for low-income Brazilians. These results provide valuable insights for crafting policies promoting health, equity, and sustainability in the face of evolving global challenges.
On the log motivic stable homotopy groups
Creators: name: Park, Doosung
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F42, 14A21

description: We compare the log motivic stable homotopy category and the usual motivic stable homotopy category over a perfect field admitting resolution of singularities. As a consequence, we show that the log motivic stable homotopy groups are isomorphic to the usual motivic stable homotopy groups.
description: Corollary 4.5 was changed
Electrothermal Transistor Effect and Cyclic Electronic Currents in Multithermal Charge Transfer Networks
Creators: name: Craven, Galen T.
name: Nitzan, Abraham
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A theory is developed to describe the coupled transport of energy and charge in networks of electron donor-acceptor sites which are seated in a thermally heterogeneous environment, where the transfer kinetics are dominated by Marcus-type hopping rates. It is found that the coupling of heat and charge transfer in such systems gives rise to exotic transport phenomena which are absent in thermally homogeneous systems and cannot be described by standard thermoelectric relations. Specifically, the directionality and extent of thermal transistor amplification and cyclical electronic currents in a given network can be controlled by tuning the underlying temperature gradient in the system. The application of these findings toward optimal control of multithermal currents is illustrated on a paradigmatic nanostructure.
MOESM1 of Doctors experiences on the quality of care for pesticide poisoning patients in hospitals in Kampala, Uganda: a qualitative exploration using donabedian’s model
Creators: name: Ssemugabo, Charles
name: Nalinya, Sarah
name: Halage, Abdullah
name: Neebye, Ruth
name: Musoke, David
name: Jørs, Erik
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Computational Biology

description: Additional file 1. Health worker’s knowledge, diagnosis and treatment of acute pesticide poisoning cases.
title: Definirti è limitarti
Creators: name: Spertini, Matteo
name: Grassi, Paolo
name: Berry, Don
Publisher: name: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani
Year: 2019
Subjects: Fotografia; etnografia urbana; multidisciplinarietà

description: Portfolio fotografico / Don Berri, Matteo Spertini, Paolo Grassi Fotografie di © Matteo Spertini
description: Tracce Urbane. Rivista Italiana Transdisciplinare di Studi Urbani, N. 6 (2020): La città interdisciplinare. Per itinerari non tracciati tra saperi urbani / The interdisciplinary city. Untracked itineraries of/for urban knowledges
Electron transfer at thermally heterogeneous molecule-metal interfaces
Creators: name: Craven, Galen T.
name: Nitzan, Abraham
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The rate of electron transfer between a molecular species and a metal, each at a different local temperature, is examined theoretically through implementation of a bithermal (characterized by two temperatures) Marcus formalism. Expressions for the rate constant and the electronic contribution to a heat transfer mechanism which is induced by the temperature gradient between molecule and metal are constructed. The system of coupled dynamical equations describing the electronic and thermal currents are derived and examined over diverse ranges of reaction geometries and temperature gradients. It is shown that electron transfer across the molecule-metal interface is associated with heat transfer and that the electron exchange between metal and molecule makes a distinct contribution to the interfacial heat conduction even when the net electronic current vanishes.