cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Singular reduction operators in two dimensions
Creators: name: Kunzinger, Michael
name: Popovych, Roman O.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35A30, 35C05, 35K55, 35K55, 35L70

description: The notion of singular reduction operators, i.e., of singular operators of nonclassical (conditional) symmetry, of partial differential equations in two independent variables is introduced. All possible reductions of these equations to first-order ODEs are are exhaustively described. As examples, properties of singular reduction operators of (1+1)-dimensional evolution and wave equations are studied. It is shown how to favourably enhance the derivation of nonclassical symmetries for this class by an in-depth prior study of the corresponding singular vector fields.
description: 22 pages, minor corrections
Facile Ultrasonic Synthesis of Zirconium Based Porphyrinic MOFs for Enhanced Adsorption Performance Towards Anionic and Mixed Dye Solutions
Creators: name: Dehghanpour, Saeed
name: Hariri, Roya
name: Samaneh Sohrabi
Publisher: name: figshare
Year: 2021
Subjects: subject: Crystallography
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 39904 Organometallic Chemistry

description: AbstractA porphyrinic mesoporous metal–organic framework (PCN-222(M) (M = Mn, Fe, Cu)) has been synthesized by a simple sonochemical preparation method without high temperature in a short period of time. The ultrasonic method for the preparation of PCN-222(M) was found to be an efficient procedure with a good quantitative yield (PCN-222(M)-U). Harmful cationic and anionic dyes have been removed from wastewater using PCN-222(M). The comparative study of the influences of metalloporphyrin and non-metal porphyrin frameworks (PCN-222) on the adsorption process has been performed. Remarkably high adsorption capacity over PCN-222(M) for the anionic dyes is reported. The porphyrinic metal center of frameworks and pH values affected dye adsorption capacity, indicating the effective role of electrostatic interactions on dye adsorption. Due to the aggregation of MB and MO, a significant increase in the adsorption capacity was observed in a mixture of MB-MO solution at pH 7. High adsorption capacity over PCN-222(M) has been estimated using Langmuir and Freundlich equations. The adsorption kinetics, thermodynamic parameters, stability and reusability of adsorbents have also been reported. The stability of PCN-222(M) in water over three months was investigated (PCN-222(M)-3).
${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States
Creators: name: Ding, Gui-Jun
name: Huang, Wei
name: Liu, Jia-Feng
name: Yan, Mu-Lin
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The proximity of ${\rm Z}^+(4430)$ to the ${\rm D^{*}\bar{D}_1}$ threshold suggests that it may be a ${\rm D^{*}\bar{D}_1}$ molecular state. The ${\rm D^{*}\bar{D}_1}$ system has been studied dynamically from quark model, and state mixing effect is taken into account by solving the multichannel Schr$\ddot{\rm o}$dinger equation numerically. We suggest the most favorable quantum number is ${\rm J^{P}=0^{-}}$, if future experiments confirm ${\rm Z}^+(4430)$ as a loosely bound molecule state. More precise measurements of ${\rm Z}^+(4430)$ mass and width, partial wave analysis are helpful to understand its structure. The analogous heavy flavor mesons ${\rm Z}^{+}_{bb}$ and ${\rm Z}^{++}_{bc}$ are studied as well, and the masses predicted in our model are in agreement with the predictions from potential model and QCD sum rule. We further apply our model to the ${\rm D\bar{D}^{*}}$ and ${\rm DD^{*}}$ system. We find the exotic ${\rm DD^{*}}$ bound molecule doesn't exist, while the $1^{++}$ ${\rm D\bar{D}^{*}}$ bound state solution can be found only if the screening mass $μ$ is smaller than 0.17 GeV. The state mixing effect between the molecular state and the conventional charmonium should be considered to understand the nature of X(3872).
description: 27 pages, 6 figures
title: Nadja und die Entwicklung
title: Über Zeitleisten, Fürsorgekreise und wildes Wachsen
titleType: Subtitle
Creators: name: Ambjörnsson, Fanny
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: Artikel
subject: Schweden
subject: Nadja
subject: Entwicklung
subject: Zeitleisten
subject: Fürsorgekreise
subject: Wachsen
subject: Queer
subject: Temporalität
subject: 839 Andere germanische Literaturen

description: Dieser Essay ist ein Versuch, das Konzept von Entwicklung kritisch und sorgsam zu diskutieren. Er basiert auf einer persönlichen Biographie, die ich über meine kleine Schwester Nadja geschrieben habe, die von Geburt an schwerbehindert, aber mit Fähigkeiten begabt war, die in unserer gegenwärtigen Gesellschaft selten als wichtig angesehen werden. Vor diesem Hintergrund nutze ich die queere Temporalitätstheorie, um zu erforschen, was ein Leben wie Nadjas uns darüber beibringen kann, seitwärts zu wachsen statt aufzuwachsen, in Kreisen zu leben statt vorwärtszustürmen und sich auf Verfeinerung und Vertiefung zu fokussieren statt weiterzueilen.
description: This essay is an attempt to critically and carefully discuss the concept of development. Drawing on a personal biography written about my little sister Nadja, severely disabled since birth but gifted with skills seldomly counted as important in our contemporary society, I use queer temporality theory to investigate what a life like Nadja’s can teach us about growing sideways rather than up, living in circles rather than fast forward and focusing on refinement and deepening rather than hurrying on.
Ammobates punctatus
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Ammobates
Ammobates punctatus

description: Ammobates punctatus (Fabricius, 1804). Statut (Belgique): CR
L’ammobate ponctué (Fig. 6) est une abeille cleptoparasite de la famille des Apidae. Le seul spécimen répertorié a été capturé au sol et ne peut donc malheureusement pas être associé à une ressource florale. La littérature répertorie cependant les plantes suivantes comme sources de nectar: Echium vulgare, Cirsium arvense, Trifolium arvense, Scabiosa columbaria, Thymus serpyllum (PEETERS et al., 2012; WESTRICH, 2019). Cette nouvelle observation est tout à fait remarquable puisqu’en Belgique, l’ammobate ponctué n’avait plus été signalé depuis 1998. Une observation récente avait toutefois été rapportée dans la région SAPOLL, du côté français de la frontière (LEMOINE & VAGO, 2020). L’espèce est univoltine et peut être observée entre juin et août. Son unique hôte est Anthophora bimaculata, une espèce inféodée aux milieux sablonneux (WESTRICH, 2019). Il est donc peu surprenant que le seul individu capturé provienne de l’aérodrome de Maubray, une aire sablonneuse située à proximité de la frontière française. Paradoxalement, Anthophora bimaculata n’a pas été observé sur ce site lors des échantillonnages. Nous pouvons donc suspecter la découverte de cette espèce lors de prochains inventaires. A l’inverse, notons que de nombreux sites abritent l’espèce hôte sans que son parasite n’y soit répertorié. Cet état de fait laisse supposer que la distribution de l’ammobate ponctué pourrait Être plus étendue et que des efforts supplémentaires permettraient d’en découvrir de nouveaux spécimens. La découverte d’un individu au terril d’Hensies en 2021 (OBSERVATIONS. BE, 2022) semble confirmer cette idée.
Augmenter la connectivité entre les sites susceptibles d’abriter l’espèce pourrait favoriser leur colonisation par cette dernière. En outre, la conservation d’ Ammobates punctatus est indissociable de la conservation de son hôte. A ce titre, nous recommandons l’aménagement des carrières et terrils de manière à favoriser les populations d’ Anthophora bimaculata. Ces mesures incluent l’entretien d’un milieu ouvert favorable à la nidification et le semis ou le maintien d’une végétation indigène adéquate (en particulier: vipérine, cirses, centaurées et chardons).
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on pages 20-21, DOI: 10.5281/zenodo.11588714
Andrena nitidiuscula Schenck 1853
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena nitidiuscula

description: Andrena nitidiuscula Schenck,1853. Statut (Belgique): VU
Andrena nitidiuscula, l’andrène de la carotte (Fig. 7), est une espèce solitaire volant de juin à août et oligolectique sur les fleurs d’Apiaceae (WESTRICH, 2019). Cette espèce est particulièrement rare: jusqu’ici, seuls 36 représentants avaient été dénombrés parmi les plus de 200 000 Andrenidae récoltées dans la région SAPOLL (FOLSCHWEILLER et al., 2020b). Elle se rencontrerait principalement dans les milieux thermophiles et aurait déjà été observée dans les lisières forestières, les prairies, les carrières, mais aussi dans les milieux urbains (PEETERS et al., 2012). La nidification s’opÈre dans des espaces à végétation éparse (WESTRICH, 2019). L’unique individu collecté a été trouvé sur une fleur du genre Picris (présumément une source de nectar) au « terril du sept », dans la commune de Boussu. La capture s’est faite à la base du terril, en lisière d’une zone boisée. Cette observation ne semble pas fortuite puisque le terril présente toutes les caractéristiques favorables à la nidification de l’espÈce.
Les Apiaceae dont l’espèce dépend pourraient être semées dans le cadre des méthodes agro-environnementales, pour la gestion des bords de route ou l’ornement des parcs. Les fleurs de Daucus carota et Chaerophyllum temulum pourraient par ailleurs attirer de nombreuses autres espèces d’abeilles (NICHOLS et al., 2019). En outre, des sites de nidifications pourraient Être fournis en aménageant des talus à végétation rase et bien exposés au soleil dans les parcs ou le long des chemins vicinaux.
Il est également envisageable que cette espÈce puisse développer ses effectifs sans intervention particuliÈre. En effet, l’andrÈne de la carotte semble bénéficier des étés chauds provoqués par le réchauffement climatique et aurait déjà commencé à étendre son aire de répartition vers le nord (RAEMAKERS, 2005).
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on page 21, DOI: 10.5281/zenodo.11588714
Nanotrappy: An open-source versatile package for cold-atom trapping close to nanostructures
Creators: name: Berroir, Jérémy
name: Bouscal, Adrien
name: Urvoy, Alban
name: Ray, Tridib
name: Laurat, Julien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Trapping cold neutral atoms in close proximity to nanostructures has raised a large interest in recent years, pushing the frontiers of cavity-QED and boosting the emergence of the waveguide-QED field of research. The design of efficient dipole trapping schemes in evanescent fields is a crucial requirement and a difficult task. Here we present an open-source Python package for calculating optical trapping potentials for neutral atoms, especially in the vicinity of nanostructures. Given field distributions and for a variety of trap configurations, nanotrappy computes the three-dimensional trapping potentials as well as the trap properties, ranging from trap positions to trap frequencies and state-dependent light shifts. We demonstrate the versatility for various seminal structures in the field, e.g., optical nanofiber, alligator slow-mode photonic-crystal waveguide and microtoroid. This versatile package facilitates the systematic design of structures and provides a full characterization of trapping potentials with applications to coherent manipulation of atoms and quantum information science.
The magnetic system SMSS J1606-1000 as a period bouncer
Creators: name: Kawka, Adela
name: Vennes, Stephane
name: Ferrario, Lilia
name: Bessell, M. S.
name: Keller, S. C.
name: Paunzen, E.
name: Buckley, D. A. H.
name: Groenewald, D.
name: Janik, J.
name: Zejda, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of a rare close binary system, SMSS J160639.78-100010.7, comprised of a magnetic white dwarf with a field of about 30 MG and a brown dwarf. We measured an orbital period of 92 min which is consistent with the photometric period. Minimum and maximum light occur at the orbital quadratures Phi=0.25 and 0.75, respectively, and cannot be caused by reflection on the brown dwarf, but, instead, by a spot on the synchronously rotating magnetic white dwarf. The brown dwarf does not fill its Roche lobe and the system may be in a low-accretion state or, more likely, in a detached state following episodes of mass transfer. SMSS J160639.78-100010.7 is the nearest known magnetic white dwarf plus brown dwarf system.
description: Accepted for publication in MNRAS Letters
A New Moment Method for Continuum Radiative Transfer in Cosmological Reionization
Creators: name: Finlator, K.
name: Ozel, F.
name: Dave, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We introduce a new code for computing time-dependent continuum radiative transfer and non-equilibrium ionization states in static density fields with periodic boundaries. Our code solves the moments of the radiative transfer equation, closed by an Eddingtion tensor computed using a long characteristics method. We show that pure (i.e., not source-centered) short characteristics and the optically-thin approximation are inappropriate for computing Eddington factors for the problem of cosmological reionization. We evolve the non-equilibrium ionization field via an efficient and accurate (errors <1%) technique that switches between fully implicit or explicit finite-differencing depending on whether the local timescales are long or short compared to the timestep. We tailor our code for the problem of cosmological reionization. In tests, the code conserves photons, accurately treats cosmological effects, and reproduces analytic Stromgren sphere solutions. Its chief weakness is that the computation time for the long characteristics calculation scales relatively poorly compared to other techniques (t_{LC} \propto N_{cells}^1.5); however, we mitigate this by only recomputing the Eddington tensor when the radiation field changes substantially. Our technique makes almost no physical approximations, so it provides a way to benchmark faster but more approximate techniques. It can readily be extended to evolve multiple frequencies, though we do not do so here. Finally, we note that our method is generally applicable to any problem involving the transfer of continuum radiation through a periodic volume.
description: 23 pages, 17 figures
KAON 2007: Conference Summary
Creators: name: Isidori, Gino
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A concise overview of the interesting recent developments in kaon phyiscs discussed at KAON 2007 is presented.
description: 16 pages, 10 figures, to appear in the proceedings of the International Conference Kaon'07, Laboratori Nazionali di Frascati, Italy, 21-25 May 2007
Combining Weak Lensing Tomography with Halo Clustering to Probe Dark Energy
Creators: name: Shapiro, Charles
name: Dodelson, Scott
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two methods of constraining the properties of dark energy are weak lensing tomography and cluster counting. Uncertainties in mass calibration of clusters can be reduced by using the properties of halo clustering (the clustering of clusters). However, within a single survey, weak lensing and halo clustering probe the same density fluctuations. We explore the question of whether this information can be used twice -- once in weak lensing and then again in halo clustering to calibrate cluster masses -- or whether the combined dark energy constraints are weaker than the sum of the individual constraints. For a survey like the Dark Energy Survey (DES), we find that the cosmic shearing of source galaxies at high redshifts is indeed highly correlated with halo clustering at lower redshifts. Surprisingly, this correlation does not degrade cosmological constraints for a DES-like survey, and in fact, constraints are marginally improved since the correlations themselves act as additional observables. This considerably simplifies the analysis for a DES-like survey: when weak lensing and halo clustering are treated as independent experiments, the combined dark energy constraints (cluster counts included) are accurate if not slightly conservative. Our findings mirror those of Takada and Bridle, who investigated correlations between the cosmic shear and cluster counts.
description: 4 pages, 2 color figures. Revised text for clarity and for resubmission to PhysRevD. Corrected error in our cluster counting Fisher matrix; combined dark energy constraints are now weaker, but our conclusions are the same
The Cauvery River dispute : hydrological politics in Indian federalism
Creators: name: Gebert, Rita Ingrid
Publisher: name: University of British Columbia
Year: 2010

description: India's Cauvery River dispute first appeared in the late 1880s when the Madras Presidency objected to the irrigation project plans of the upstream princely state of Mysore. This study investigates the modern incarnation of the Cauvery dispute which began in 1970 when Tamil Nadu's complaints against Karnataka's reservoir projects in the Cauvery Basin escalated into demands that the central government appoint a tribunal to adjudicate the dispute. The conflict has continued since then and as of 1983 no resolution is imminent. Two analytical approaches To river disputes and to Indian federalism are especially helpful in explaining the Cauvery dispute. The river dispute literatune is particularly useful in demonstrating why there is a conflict at all, why the states have presented the types of arguments they have, and what hydrologic factors make this river dispute difficult to solve. The central government in its role as mediator, however, will have the greatest effect on the interstate river dispute's outcome. This makes it important to understand India's prevailing system of centre-state political relations. The thesis outlines in considerable detail the technical aspects of the dispute and chronicles the negotiations that have gone on between Tamil Nadu and Karnataka. The main argument of the thesis is that the Indian central government has acted in the Cauvery and other river disputes according to its interpretation of the political costs and benefits involved in resolving the dispute. Meanwhile, the state governments, which are much more concerned with the hydrology and development of the Cauvery, have contradictory views of these political costs and benefits. It would appear that the dispute will be resolved when Karnataka has interrupted the Cauvery's flow enough to force Tamil Nadu to accept a compromise to be negotiated by the Government of India.
Fractional Calculus: Integral and Differential Equations of Fractional Order
Creators: name: Gorenflo, Rudolf
name: Mainardi, Francesco
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Complex Variables (math.CV)
subject: History and Overview (math.HO)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 26A33, 33E12, 33E20, 44A20, 45E10, 45J05

description: We introduce the linear operators of fractional integration and fractional differentiation in the framework of the Riemann-Liouville fractional calculus. Particular attention is devoted to the technique of Laplace transforms for treating these operators in a way accessible to applied scientists, avoiding unproductive generalities and excessive mathematical rigor. By applying this technique we shall derive the analytical solutions of the most simple linear integral and differential equations of fractional order. We show the fundamental role of the Mittag-Leffler function, whose properties are reported in an ad hoc Appendix. The topics discussed here will be: (a) essentials of Riemann-Liouville fractional calculus with basic formulas of Laplace transforms, (b) Abel type integral equations of first and second kind, (c) relaxation and oscillation type differential equations of fractional order.
description: 56 pages, 7 figures/eps files
High accretion rates in magnetised Keplerian discs mediated by a Parker instability driven dynamo
Creators: name: Johansen, Anders
name: Levin, Yuri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Hydromagnetic stresses in accretion discs have been the subject of intense theoretical research over the past one and a half decades. Most of the disc simulations have assumed a small initial magnetic field and studied the turbulence that arises from the magnetorotational instability. However, gaseous discs in galactic nuclei and in some binary systems are likely to have significant initial magnetisation. Motivated by this, we performed ideal magnetohydrodynamic simulations of strongly magnetised, vertically stratified discs in a Keplerian potential. Our initial equilibrium configuration, which has an azimuthal magnetic field in equipartion with thermal pressure, is unstable to the Parker instability. This leads to the expelling of magnetic field arcs, anchored in the midplane of the disc, to around five scale heights from the midplane. Transition to turbulence happens primarily through magnetorotational instability in the resulting vertical fields, although magnetorotational shear instability in the unperturbed azimuthal field plays a significant role as well, especially in the midplane where buoyancy is weak. High magnetic and hydrodynamical stresses arise, yielding an effective $α$-value of around 0.1 in our highest resolution run. Azimuthal magnetic field expelled by magnetic buoyancy from the disc is continuously replenished by the stretching of a radial field created as gas parcels slide in the linear gravity field along inclined magnetic field lines. This dynamo process, where the bending of field lines by the Parker instability leads to re-creation of the azimuthal field, implies that highly magnetised discs are astrophysically viable and that they have high accretion rates.
description: 14 pages, 14 figures, accepted for publication in A&A
Thesis manuscript
Creators: name: Singh, Amoli
Publisher: name: figshare
Year: 2022
Subjects: subject: 110506 Orthodontics and Dentofacial Orthopaedics
subject: FOS: Clinical medicine

description: Objectives: To assess and compare the cranial base morphology in long face and short face. Methodology: The study comprised of 64 individuals (32 in each group).group I consists of individual’s with long face and group II comprised of individuals with short face. Individuals were classified into groups with the help of lateral cephalometric parameters like Gonial Angle, Anterior facial height, Posterior facial height, Jarabak’s Ratio and Y-axis. Linear and angular measurement in the cranial base was taken. Result: The results showed statistically significant difference in Sella-Nasion, Sella-Basion and Nasion-Sella-Basion between the two groups. Sella-Spinoethmoidal suture, Nasion- Spinoethmoidal suture, Spinoethmoidal suture-Sella-Basion, Frankfurt Horizontal-Sella-Nasion, Frankfurt horizontal-Sella-Basion, Frankfurt horizontal-Sella- Spinoethmoidal suture showed no statistically significant difference among the groups. Conclusion: The study concluded that individuals with long face have a greater Sella-Nasion, Sella- Basion, Nasion-Sella-Basion compared to individuals with short face.
Continuous Dissipative Phase Transitions without Symmetry Breaking
Creators: name: Minganti, Fabrizio
name: Arkhipov, Ievgen I.
name: Miranowicz, Adam
name: Nori, Franco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The paradigm of second-order phase transitions (PTs) induced by spontaneous symmetry breaking (SSB) in thermal and quantum systems is a pillar of modern physics that has been fruitfully applied to out-of-equilibrium open quantum systems. Dissipative phase transitions (DPTs) of second order are often connected with SSB, in close analogy with well-known thermal second-order PTs in closed quantum and classical systems. That is, a second-order DPT should disappear by preventing the occurrence of SSB. Here, we prove this statement to be wrong, showing that, surprisingly, SSB is not a necessary condition for the occurrence of second-order DPTs in out-of-equilibrium open quantum systems. We analytically prove this result using the Liouvillian theory of dissipative phase transitions, and demonstrate this anomalous transition in a paradigmatic laser model, where we can arbitrarily remove SSB while retaining criticality, and on a $Z_2$-symmetric model of a two-photon Kerr resonator. This new type of phase transition cannot be interpreted as a "semiclassical" bifurcation, because, after the DPT, the system steady state remains unique.
description: 9 pages, 2 figures, corrected minor typos
Anthophora bimaculata
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Anthophora
Anthophora bimaculata

description: Anthophora bimaculata (Panzer,1798). Statut (Belgique): CR
Anthophora bimaculata, l’héliophile commune (Fig. 8), est une abeille inféodée aux milieux thermophiles volant entre les mois de juillet et août. Son alimentation est polylectique et comprend des fleurs des genres Centaurea, Echium, Anchusa, Trifolium, Teucrium, etc. (WESTRICH, 2019). Les individus capturés ont été retrouvés sur les genres Cirsium, Centaurea, Echium et Rubus. L’espèce n’a été observée qu’au sein de milieux issus de l’industrie minière (15 individus pour les carrières et quatre pour les terrils), probablement car ses nids sont habituellement creusés dans des sables fins. Les surfaces utilisées sont généralement planes et peuvent Être recouvertes par plus ou moins de végétation (WESTRICH, 2019).
La conservation de cette espèce repose essentiellement sur la protection de ses sites de nidifications puisque l’existence d’un substrat sablonneux et d’un habitat thermophile semble dicter sa répartition. Afin de maximiser le potentiel des carriÈres et terrils à accueillir une haute biodiversité d’hyménoptères, il est recommandé de maintenir un niveau de colonisation végétale intermédiaire en éliminant régulièrement les arbrisseaux et en exposant des bancs de sables (TWERD et al., 2021).
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on page 22, DOI: 10.5281/zenodo.11588714
Rationale for the reactivity differences between main group and d0 transition metal complexes toward olefin polymerisation
Creators: name: Dehghanpour, Saeed
name: Tabatabaie, Elham S.
name: Elnaz Mosaddegh
name: Rasool Babaahmadi
name: Chipman, Antony
name: Yates, Brian F.
name: Alireza Ariafard
Publisher: name: figshare
Year: 2021
Subjects: subject: Crystallography
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 39904 Organometallic Chemistry

description: AbstractIn contrast to early transition metal complexes of d0 electron configuration, their main group metal analogues are usually poor catalysts for ethylene polymerisation due to their diminished tendency to insert ethylene into an M-R bond. Interestingly, we found that ring strain in the transition structure of the insertion reaction is most likely responsible to set the ease of the process. Ethylene insertion into an M-R bond requires a four-membered ring transition structure. Strain in a four-membered ring was shown to be dependent on the metal identity (transition or main group/d or p block). For early transition metals, due to the presence of empty valence d orbitals, the strain is negligible but, for main group metals, the strain is significant and so destabilizes the corresponding transition structure. Our claim gains support from investigation of ethylene insertion into an M-allyl bond. In this case, the relevant insertion preferentially passes through a six-membered ring transition structure with an accessibly low activation barrier. In contrast to four-membered ring transition structures, six-membered ones do not suffer significantly from ring strain, causing the insertion activation barrier to become independent of the metal identity. It becomes obvious from our study that this previously undisclosed factor should play the pivotal role in determining the reactivity of many catalysts.
Towards Natural Language Interfaces for Data Visualization: A Survey
Creators: name: Shen, Leixian
name: Shen, Enya
name: Luo, Yuyu
name: Yang, Xiaocong
name: Hu, Xuming
name: Zhang, Xiongshuai
name: Tai, Zhiwei
name: Wang, Jianmin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Utilizing Visualization-oriented Natural Language Interfaces (V-NLI) as a complementary input modality to direct manipulation for visual analytics can provide an engaging user experience. It enables users to focus on their tasks rather than having to worry about how to operate visualization tools on the interface. In the past two decades, leveraging advanced natural language processing technologies, numerous V-NLI systems have been developed in academic research and commercial software, especially in recent years. In this article, we conduct a comprehensive review of the existing V-NLIs. In order to classify each paper, we develop categorical dimensions based on a classic information visualization pipeline with the extension of a V-NLI layer. The following seven stages are used: query interpretation, data transformation, visual mapping, view transformation, human interaction, dialogue management, and presentation. Finally, we also shed light on several promising directions for future work in the V-NLI community.
description: 20 pages, 15 figures, accepted by IEEE TVCG
Soft-photon corrections in multi-body meson decays
Creators: name: Isidori, Gino
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effects due to soft-photon emission (and the related virtual corrections) in multi-body decays of B, D, and K mesons are analysed. We present analytic expressions for the universal O(alpha) correction factors which can be applied to all multi-body decay modes where a tight soft-photon energy cut in the decaying-particle rest-frame is applied. All-order resummations valid in the limit of small and large velocities of the final-state particles are also discussed. The phenomenological implications of these correction factors in the distortion of Dalitz-plot distributions of K -> 3 pi decays are briefly analysed.
description: 8 pages, 2 figures (v2: minor modifications - published version)
Anthophora retusa
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Anthophora
Anthophora retusa

description: Anthophora retusa (Linnaeus,1758). Statut (Belgique): EN
L’anthophore obtuse (Fig. 9), Anthophora retusa, est une espèce printanière (mai-juin) polylectique associée aux milieux secs (carrières, prairies thermophiles, lisières ensoleillées, etc.). Le nid est généralement creusé dans des parois verticales, dans du limon ou du sable (PEETERS et al., 2012). L’un des deux individus capturés butinait une fleur du genre Vicia.
Une des observations provient de la vallée de la Trouille, au sud de la commune de Mons. Le site en question est situé en bordure de champ, au sein d’une zone classée Natura 2000. Les méthodes de gestion extensives ont donc possiblement favorisé la présence de l’espèce. Les carrières de craies d’Harmignies sont à proximité immédiate et pourraient également constituer un potentiel milieu de nidification (LEMOINE, 2015). La seconde observation est liée au « terril du sept », dont le caractère thermophile, le relief et la granulométrie sont probablement favorables à l’espèce.
Anthophora retusa est une espèce rare dont l’écologie et les causes de déclin sont encore peu connues (HENNESSY et al., 2021). Les sources de pollen exploitées sont constituées de plantes communes (Trifolium, Glechoma hederacea, Echium vulgare; HENNESSY et al., 2021). Ces dernières pourraient très bien être semées dans les espaces publics et n’exigeraient pas un entretien important. La nidification de l’espÈce est en revanche beaucoup plus contraignante. L’aménagement de microfalaises sablo-limoneuses pourrait être envisagé dans les carrières ou sur certains talus (LEMOINE, 2015). Celles-ci peuvent se limiter à une cinquantaine de centimètres mais doivent Être exposées au sud et se situer non loin de ressources florales (DASNIAS, 2002). En effet, Anthophora retusa pourrait être limitée à une distance de vol assez courte (HENNESSY et al., 2021). De telles structures pourraient également Être construites de toutes piÈces dans certains parcs urbains.
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on page 23, DOI: 10.5281/zenodo.11588714
Bombus barbutellus
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus barbutellus

description: Bombus barbutellus (Kirby, 1802). Statut (Belgique): CR
Bombus barbutellus, le psithyre barbu (Fig. 10), est un parasite social dont les colonies hôtes appartiennent au sous-genre Megabombus (en Belgique: Bombus hortorum et Bombus ruderatus). L’espèce aurait une prédilection pour les milieux boisés et les mâles se nourriraient préférentiellement sur les carduées. Bombus barbutellus aurait souffert de la raréfaction de ses hôtes et de l’extirpation systématique des chardons et des cirses (VRAY et al., 2017; FOLSCHWEILLER et al., 2020a), cette pratique étant exigée par la législation belge sur l’échardonnage (A. R. du 19/11/1987, article 43).
Les données nationales récentes indiquent une forte raréfaction du psithyre barbu, celui-ci ne représentant plus qu’une portion infime des bourdons collectés depuis les années 2000 (FOLSCHWEILLER et al., 2020a). De fait, un seul spécimen a été identifié dans notre échantillonnage. Celui-ci a été observé à Ciply (Mons), dans la réserve dite de « Ronveaux ». La zone échantillonnée correspond à une prairie sèche adjacente à une ancienne exploitation de craie phosphatée. L’espace est relativement étroit et est ceinturé par un milieu beaucoup plus boisé. Le spécimen en question butinait une fleur du genre Rubus.
L’espèce pourrait être favorisée par une politique plus souple en matière d’échardonnage (PAULY & COPPÉE, 2017). Elle pourrait également bénéficier de mesures visant à préserver les populations déclinantes de son hôte principal, Bombus hortorum (DROSSART et al., 2019; FOLSCHWEILLER et al., 2020a). Ce dernier, bien que polylectique, affiche une préférence pour les fleurs à corolles longues (FOLSCHWEILLER et al., 2020a). Dans les espaces publics, les pelouses pourraient facilement Être semées de trÈfle ou de Lamiaceae rampantes comme Glechoma hederacea ou Lamium purpureum, celles-ci ne nécessitant que peu d’entretien. En dehors de la plantation de bandes florales, les espaces agricoles pourraient également développer des haies dans le cadre de mesures agro-environnementales. En effet B. hortorum affectionnerait particuliÈrement les espaces situés en lisière (FOLSCHWEILLER et al., 2020a).
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on pages 24-25, DOI: 10.5281/zenodo.11588714
Bombus campestris
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus campestris

description: Bombus campestris (Panzer, 1801). Statut (Belgique): VU
Le psithyre des champs (Fig. 11), Bombus campestris, est une espèce parasite de Bombus pascuorum, l’un des bourdons les plus abondants de Belgique. L’espèce serait plutôt rare dans les milieux agricoles et affectionnerait particuliÈrement les terrils (RASMONT et al., 2010 a). En ce qui concerne nos données, deux des sept spécimens capturés ont effectivement été retrouvés sur ce type de milieu. Les autres spécimens ont été collectés dans des prairies, des parcs et un bois. Les plantes associées à ces données (genres Cirsium, Carduus, Echium, etc.) correspondent assez bien aux préférences renseignées dans la littérature (Asteraceae et Dipsacaceae; FOLSCHWEILLER et al., 2020a).
A l’instar d’autres bourdons, l’espÈce pourrait avoir souffert des mesures légales concernant l’échardonnage (VRAY et al., 2017). Un assouplissement de ces mesures lui serait donc bénéfique. Favoriser son hôte ne serait en revanche pas pertinent puisque celui-ci est déjà prospère et ne présente aucun signe de déclin (FOLSCHWEILLER et al., 2020a). Ce paradoxe pourrait éventuellement s’expliquer si Bombus campestris n’était pas spécifiquement associé à B. pascuorum mais plutôt à l’ensemble du sous-genre Thoracombombus auquel celui-ci appartient (ANTONOVICS, 2011). En effet, des espÈces comme B. muscorum ou B. humilis ont aujourd’hui presque disparu de Belgique (FOLSCHWEILER et al., 2020). La restauration des prairies maigres qui constituaient leur habitat et le semis de plantes appropriées comme le trÈfle pourrait par conséquent avoir un impact positif sur B. campestris (FOLSCHWEILER et al., 2020).
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on pages 25-26, DOI: 10.5281/zenodo.11588714
A Critique of Modern SQL And A Proposal Towards A Simple and Expressive Query Language
Creators: name: Neumann, Thomas
name: Leis, Viktor
Publisher: name: Zenodo
Year: 2025

description: The first contribution of the paper is a comprehensive critique of modern SQL, informed by an analysis of real-world SQL queries. This provides the motivation for our second contribution: the Simple ANd Expressive Query Language (SaneQL). SaneQL features a straightforward and consistent syntax, which improves its learnability and ease of implementation. Additionally, it provides extensi- bility, with the added ability to define new operators that integrate seamlessly with the existing built-in ones. Unlike most data frame APIs and NoSQL query languages, SaneQL fully embraces the core principles behind SQL, especially multiset semantics. We propose that adopting SaneQL’s approach can ensure the enduring success of relational database technology, offering the power of SQL’s underlying concepts through a more accessible and flexible language
The Electrocatalytic Stability Investigation of a Proton Manager MOF for the Oxygen Reduction Reaction in Acidic Media
Creators: name: Dehghanpour, Saeed
name: Samaneh Sohrabi
name: Ghalkhani, Masoumeh
Publisher: name: figshare
Year: 2021
Subjects: subject: Crystallography
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 39904 Organometallic Chemistry

description: AbstractIn this paper, regarding outstanding electrocatalytic properties of metal organic frame works for fuel cell applications, we have synthesised and investigated comprehensively the elecrocatalytic stability of PCN-222 (PCN = porous coordination network) for the oxygen reduction reaction (ORR) in acidic media. ORR is a main reaction that take parts in cathodic part of a fuel cell and preparation of a stable and efficient electrocatalyst for this reaction will effectively improve the fuel cell output. The 3D heme-like metal organic framework (MOF) was constructed from Fe(III) porphyrin linkers and Zr6 clusters.The catalyst stability tests manifested that the PCN-222 is much more stable than the other metal macrocycles. The assembled PCN-222 catalyst possesses ultra stability, high activity and excellent tolerance to the crossover effect of methanol, which could be used as a unique alternative to common ORR catalysts in an acidic direct methanol fuel cell.
On Metrics for Error Correction in Network Coding
Creators: name: Silva, Danilo
name: Kschischang, Frank R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The problem of error correction in both coherent and noncoherent network coding is considered under an adversarial model. For coherent network coding, where knowledge of the network topology and network code is assumed at the source and destination nodes, the error correction capability of an (outer) code is succinctly described by the rank metric; as a consequence, it is shown that universal network error correcting codes achieving the Singleton bound can be easily constructed and efficiently decoded. For noncoherent network coding, where knowledge of the network topology and network code is not assumed, the error correction capability of a (subspace) code is given exactly by a new metric, called the injection metric, which is closely related to, but different than, the subspace metric of Kötter and Kschischang. In particular, in the case of a non-constant-dimension code, the decoder associated with the injection metric is shown to correct more errors then a minimum-subspace-distance decoder. All of these results are based on a general approach to adversarial error correction, which could be useful for other adversarial channels beyond network coding.
description: 28 pages, 1 figure, to be published at IEEE Transactions on Information Theory
Bombus ruderarius
Creators: name: FIORDALISO, William
name: REVERTÉ, Sara
name: WOOD, Thomas
name: BARBIER, Yvan
name: RASMONT, Pierre
name: LEFÈBVRE, Alexandre
name: LOOCKX, Martin
name: REESE, Alexandre
name: RUELLE, Eulalie
name: MICHEZ, Denis
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus ruderarius

description: Bombus ruderarius (Müller, 1776). Statut (Belgique): EN
Le bourdon rudéral (Fig. 12), Bombus ruderarius est une espèce de bourdon retrouvées dans de nombreux types d’habitats, y compris en ville (RASMONT et al., 2015b). L’espèce est polylectique, même si on note une certaine préférence pour les Fabaceae chez les femelles et pour les carduées chez les mâles (FOLSCHWEILLER et al., 2020a). En plus d’avoir toujours été relativement rare, l’espÈce souffre aujourd’hui d’un déclin notable (RASMONT & PAULY, 2010). Le seul spécimen dont nous disposons a été capturé non loin du centre-ville de Mons, dans une friche située entre le canal et les voies de chemin de fer. La fleur associée à cette observation appartenait au genre Centaurea.
De maniÈre générale, les populations existantes pourraient Être renforcées par la restauration de prairies riches en fleurs (BENTON, 2008). Le déclin de Bombus ruderarius est cependant énigmatique puisque des espèces au mode de vie relativement similaire (Bombus pascuorum) semblent quant à elles prospérer (BENTON, 2008). La présence récurrente de l’espèce au sein des friches pourrait laisser penser que celle-ci affectionne les espaces urbains semi-ouverts et richement fleuris (BENTON, 2008). Malheureusement, ces friches subissent une importante pression immobilière et tendent donc à disparaître du paysage (BONTHOUX et al., 2014). DÈs-lors, la capacité à survivre dans un réseau de plus en plus fragmenté pourrait faire la différence entre B. pascuorum et B. ruderarius (BENTON, 2008). Dans cette éventualité, la protection des friches urbaines richement fleuries ou l’établissement de petits espaces enfrichés au sein de certains parcs pourraient bénéficier à B. ruderarius.
description: Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp. 1-64 in Belgian Journal of Entomology 132 on pages 26-27, DOI: 10.5281/zenodo.11588714