cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimizing tip-surface interactions in ESR-STM experiments
Creators: name: Rodríguez, Santiago A.
name: Gómez, Sergio S.
name: Fernández-Rossier, Joaquín
name: Ferrón, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electron-spin resonance carried out with scanning tunneling microscopes (ESR-STM) is a recently developed experimental technique that is attracting enormous interest on account of its potential to carry out single-spin on-surface resonance with subatomic resolution. Here we carry out a theoretical study of the role of tip-adatom interactions and provide guidelines for choosing the experimental parameters in order to optimize spin resonance measurements. We consider the case of the Fe adatom on a MgO surface and its interaction with the spin-polarized STM tip. We address three problems: first, how to optimize the tip-sample distance to cancel the effective magnetic field created by the tip on the surface spin, in order to carry out proper magnetic field sensing. Second, how to reduce the voltage dependence of the surface-spin resonant frequency, in order to minimize tip-induced decoherence due to voltage noise. Third, we propose an experimental protocol to infer the detuning angle between the applied field and the tip magnetization, which plays a crucial role in the modeling of the experimental results.
description: 10 pages, 5 Figures
Stellar Activity Effects On High Energy Transits
Creators: name: Llama, Joe
name: Shkolnik, Evgenya
name: Jardine, Moira
Publisher: name: Zenodo
Year: 2016
Subjects: exoplanets
stellar activity
sun
sunspots
starspots
stellar wind
magnetic activity

description: High energy (X-ray / UV) observations of transiting exoplanets have revealed the presence of extended atmospheres around a number of systems.  At these energies, stellar radiation is absorbed in the upper atmosphere of the planet, making X-ray / UV transits an exciting tool for investigating the composition of exoplanetary atmospheres. However, the effects of stellar activity on transits at these wavelengths is far from understood. In X-rays the stellar disk appears limb-brightened, and active regions appear as extended bright features that evolve on a much shorter timescale than in the optical. This makes measuring the true planet-to-star radius ratio challenging.

The Sun offers a unique opportunity to study the impact of stellar activity on high energy transits. Using disk resolved soft X-ray and UV images  from  NASA's Solar Dynamics Observatory taken over the last solar cycle I will show how both occulted and unocculted active regions can mimic an inflated planetary atmosphere by changing the depth and shape of a transit profile. I will also show how the disk integrated Lyman-α Solar irradiance varies on both short and long timescales and how this variability can also impact our ability to recover the true radius ratio of a transiting exoplanet.  Finally, I will present techniques to overcome these challenges in high-energy transits.
Population of ground and lowest excited states of Sulfur via the dissociative recombination of SH+ in the diffuse interstellar medium
Creators: name: Boffelli, J.
name: Gauchet, F.
name: Kashinski, D. O.
name: Talbi, D.
name: Hickman, A. P.
name: Chakrabarti, K.
name: Bron, E.
name: Orban, A.
name: Mezei, J. Zs.
name: Schneider, I. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Our previous study on dissociative recombination of ground state SH$^+$ into $^2Π$ states of SH is extended by taking into account the contribution of $^4Π$ states recently explored by quantum chemistry methods. Multichannel quantum defect theory is employed for the computation of cross sections and rate coefficients for dissociative recombination, but also for vibrational excitation. Furthermore, we produce the atomic yields resulting from recombination, quantifying the generation of sulfur atoms in their ground (\mbox{$^3$P}) and lowest excited (\mbox{$^1$D}) states respectively.
description: 9 pages, 8 figures, 3 tables
Reduced basis emulation of pairing in finite systems
Creators: name: Baran, Virgil V.
name: Nichita, Denis R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In recent years, reduced basis methods (RBMs) have been adapted to the many-body eigenvalue problem and they have been used, largely in nuclear physics, as fast emulators able to bypass expensive direct computations while still providing highly accurate results. This work is meant to show that the RBM is an efficient and accurate emulator for the strong correlations induced by the pairing interaction in a variety of finite systems like ultrasmall superconducting grains, interacting topological superfluids and mesoscopic hybrid superconductor-semiconductor devices, all of which require an expensive, beyond-mean-field, particle-number conserving description. These systems are modelled by the number-conserving Richardson pairing Hamiltonian and its appropriate generalizations. Their ground state is solved for exactly using the Density Matrix Renormalization Group. The reduced basis is assembled iteratively from a small number of exact ground state vectors, well-chosen from across the relevant parameter space using a fast estimate of the emulation error and a greedy local optimization algorithm. The reduced basis emulation is found to accurately describe the weak-to-strong pairing cross-over in small grains, the third-order topological phase transition of the interacting Richardson-Kitaev chain, and the complex charge stability diagram of a hybrid quantum dot - superconductor device. RBMs are thus confirmed to be cheap and accurate emulators for the widely encountered superconducting phenomena. Capable of providing orders of magnitude computational speed-up with respect to approaches based only on traditional many-body solvers, they open new possibilities in building and solving models of interacting many-body systems and in better interfacing them with experimental design and data analysis.
description: 16 pages, 17 figures
Multitask Kernel-based Learning with First-Order Logic Constraints
Creators: name: Diligenti, Michelangelo
name: Gori, Marco
name: Maggini, Marco
name: Rigutini, Leonardo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In this paper we propose a general framework to integrate supervised and unsupervised examples with background knowledge expressed by a collection of first-order logic clauses into kernel machines. In particular, we consider a multi-task learning scheme where multiple predicates defined on a set of objects are to be jointly learned from examples, enforcing a set of FOL constraints on the admissible configurations of their values. The predicates are defined on the feature spaces, in which the input objects are represented, and can be either known a priori or approximated by an appropriate kernel-based learner. A general approach is presented to convert the FOL clauses into a continuous implementation that can deal with the outputs computed by the kernel-based predicates. The learning problem is formulated as a semi-supervised task that requires the optimization in the primal of a loss function that combines a fitting loss measure on the supervised examples, a regularization term, and a penalty term that enforces the constraints on both the supervised and unsupervised examples. Unfortunately, the penalty term is not convex and it can hinder the optimization process. However, it is possible to avoid poor solutions by using a two stage learning schema, in which the supervised examples are learned first and then the constraints are enforced.
description: The 20th International Conference on Inductive Logic Programming (ILP 2010). Florence, Italy. June 27-30 2010
title: Ärztliches Handeln - Erwartungen und Selbstverständnis
Creators: name: :None
Publisher: name: Wissenschaftliche Verlagsgesellschaft Stuttgart
Year: 2018
Subjects: subject: Handlung
subject: Selbstbestimmung
subject: Erwartung
subject: Selbstbild
subject: Patient
subject: Arzt-Patient-Beziehung
subject: Medizinische Ethik
subject: 610

description: Das ärztliche Handeln wird in Gesellschaft und Politik unter Berücksichtigung vielfältiger berufsrechtlicher und gesetzlicher Hintergründe diskutiert. Selbstbestimmung des Patienten, Schadensvermeidung, Ausrichtung am Patientenwohl und der Aspekt der sozialen Gerechtigkeit treffen in der konkreten Arzt-Patienten-Begegnung auf eine vielschichtige und zum Teil widersprüchliche Realität, die sich durch medizinisch-technischen Fortschritt und gesellschaftlichen wie kulturellen Wandel immer wieder neu und anders darstellt. Der Band analysiert Überlegungen zu Fortschrittsfragen in der Medizin (u. a. zum Einsatz der Genomic), untersucht verschiedene Erwartungen an ärztliches Handeln in kultureller Differenz und diskutiert Identitätsprobleme der westlichen Medizin und deren historische Wurzeln. Aus verschiedenen ethisch-moralischen Perspektiven werden aktuelle Entwicklungen der Medizin hinterfragt.
description: Nova Acta Leopoldina: NAL ; Abhandlungen der Deutschen Akademie der Naturforscher Leopoldina, no. NF, Nummer 420
Relativistic approach to the nuclear breathing mode
Creators: name: Litvinova, Elena
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Microscopic theory of the nuclear response based on the relativistic meson-nucleon Lagrangian is applied to the description of the isoscalar giant monopole resonance (ISGMR) in a variety of nuclear systems. It is shown that the parameter-free inclusion of beyond-mean-field correlations of the quasiparticle-vibration coupling (qPVC) type in the leading approximation allows for a simultaneous realistic description of the ISGMR in nuclei of lead, tin, zirconium, and nickel mass regions, which is difficult on the mean-field level. The calculations employ the finite-range effective meson-nucleon interaction, which, in combination with the qPVC, has consistently demonstrated the ability to reliably describe many other nuclear structure phenomena. Systematic calculations of the isoscalar monopole response for nickel isotopes help reveal the central role of the coupling between the ISGMR and the low-energy quadrupole states in the placement of the ISGMR centroids.
description: Article: 5 pages, 3 figures
Identifying the Core Elements of Developing Student Leaders in a College Ambassador Program
Creators: name: Tennison, Megan
Publisher: name: University of Kentucky
Year: 2016
Subjects: subject: Leadership Studies

description: Within the university system, student organizations have historically had multiple positive influences on the students who choose to participate in them. This study looked at a particular banner organization in the College of Agriculture, Food and Environment at the University of Kentucky. Using the Social Change Model of Leadership Development theory as a backbone, a survey was created to evaluate the impact UK CAFE Ambassador Program has on its participants, as well as to identify avenues for improvement. This is a program that seeks to represent the college through recruitment and to develop student leaders through soft skill building. After surveying current and past ambassadors, there is overwhelming evidence that the UK CAFE Ambassador Program has positively impacted the students whether it was through skills building, networking, or college experience.
Impact of wind and river flow on the timing of the Rivers Inlet spring phytoplankton bloom
Creators: name: Wolfe, Megan Amelia
Publisher: name: University of British Columbia
Year: 2010

description: The primary objective of this masters study is to develop an understanding of the physical processes driving the timing of the spring phytoplankton bloom in Rivers Inlet. The spring bloom is initiated as light limitation is lifted causing an increase in growth which overcomes loses due to grazing and advection. The bloom is terminated by nitrate exhaustion. The physical system can impact the spring bloom through variations of winds, cloud coverage, and river input. Strong winds showed two effects. First, strong winds increased the mixing layer depth which decreased the amount of light available for phytoplankton, thus delaying the timing of the spring bloom. Second, large outflow winds caused flushing events to occur resulting in rapid horizontal advection removing the plankton population from the area. River discharge has two opposite effects on the timing of the spring bloom. High river discharge causes the water column to stratify, reducing the mixing layer depth which provides more light available for growth and results in an earlier bloom. High discharge will also result in higher upwelling advection leading to a larger advective loss term for phytoplankton, delaying the bloom. Changes in cloud coverage will directly affect the incoming solar radiation and the light available for photosynthesis. A coupled bio-physical model is used to explore the driving forces involved in the timing of the spring phytoplankton bloom in Rivers Inlet, British Columbia, Canada. The primary control on the timing of the spring bloom in Rivers Inlet is wind speed and direction. Secondary control on the timing is due to freshwater flow; high river discharge delays the bloom in Rivers Inlet. Single outflow wind events can result in a 7 day delay in the bloom timing. The shift in bloom timing resulting from multiple outflow wind events is greater than the sum of the individual wind events. Implications of flushing events in fjords along the British Columbia coastline are also discussed.
The Circumstellar Environment of R Coronae Borealis: White Dwarf Merger or Final Helium Shell Flash?
Creators: name: Clayton, Geoffrey C.
name: Sugerman, Ben E. K.
name: Stanford, S. Adam
name: Whitney, B. A.
name: Honor, J.
name: Babler, B.
name: Barlow, M. J.
name: Gordon, K. D.
name: Andrews, J. E.
name: Geballe, T. R.
name: Bond, Howard E.
name: De Marco, O.
name: Lawson, W. A.
name: Sibthorpe, B.
name: Olofsson, G.
name: Polehampton, E.
name: Gomez, H. L.
name: Matsuura, M.
name: Hargrave, P. C.
name: Ivison, R. J.
name: Wesson, R.
name: Leeks, S. J.
name: Swinyard, B. M.
name: Lim, T. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In 2007, R Coronae Borealis (R CrB) went into an historically deep and long decline. In this state, the dust acts like a natural coronagraph at visible wavelengths, allowing faint nebulosity around the star to be seen. Imaging has been obtained from 0.5 to 500 micron with Gemini/GMOS, HST/WFPC2, Spitzer/MIPS, and Herschel/SPIRE. Several of the structures around R CrB are cometary globules caused by wind from the star streaming past dense blobs. The estimated dust mass of the knots is consistent with their being responsible for the R CrB declines if they form along the line of sight to the star. In addition, there is a large diffuse shell extending up to 4 pc away from the star containing cool 25 K dust that is detected all the way out to 500 micron. The SED of R CrB can be well fit by a 150 AU disk surrounded by a very large diffuse envelope which corresponds to the size of the observed nebulosity. The total masses of the disk and envelope are 10^-4 and 2 M(Sun), respectively, assuming a gas-to-dust ratio of 100. The evidence pointing toward a white-dwarf merger or a final-helium-shell flash origin for R CrB is contradictory. The shell and the cometary knots are consistent with a fossil planetary nebula. Along with the fact that R CrB shows significant Lithium in its atmosphere, this supports the final-helium-shell flash. However, the relatively high inferred mass of R CrB and its high fluorine abundance support a white-dwarf merger.
description: 30 pages, 11 figures, ApJ in press
Enhanced prospects for direct detection of inelastic dark matter from a non-galactic diffuse component
Creators: name: Herrera, Gonzalo
name: Ibarra, Alejandro
name: Shirai, Satoshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In some scenarios, the dark matter particle predominantly scatters inelastically with the target, producing a heavier neutral particle in the final state. In this class of scenarios, the reach in parameter space of direct detection experiments is limited by the velocity of the dark matter particle, usually taken as the escape velocity from the Milky Way. On the other hand, it has been argued that a fraction of the dark matter particles in the Solar System could be bound to the envelope of the Local Group or to the Virgo Supercluster, and not to our Galaxy, and therefore could carry velocities larger than the escape velocity from the Milky Way. In this paper we estimate the enhancement in sensitivity of current direct detection experiments to inelastic dark matter scatterings with nucleons or electrons due to the non-galactic diffuse components, and we discuss the implications for some well motivated models.
description: 19 pages, 7 figures. Matches published version
Interference between magnetic field and cavity modes in an extended Josephson junction
Creators: name: Humbert, V.
name: Aprili, M.
name: Hammer, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: An extended Josephson junction consists of two superconducting electrodes that are separated by an insulator and it is therefore also a microwave cavity. The superconducting phase difference across the junction determines the supercurrent as well as its spatial distribution. Both, an external magnetic field and a resonant cavity intrafield produce a spatial modification of the superconducting phase along the junction. The interplay between these two effects leads to interference in the critical current of the junction and allows us to continuously tune the coupling strength between the first cavity mode and the Josephson phase from 1 to -0.5. This enables static and dynamic control over the junction in the ultra-strong coupling regime.
description: 4 pages, 3 figures
Ice phonon spectra and Bayes inference: a gateway to a new understanding of terahertz sound propagation in water
Creators: name: De Francesco, Alessio
name: Scaccia, Luisa
name: Formisano, Ferdinando
name: Guarini, Eleonora
name: Bafile, Ubaldo
name: Alatas, Ahmet
name: Lynch, Scott T.
name: Cunsolo, Alessandro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Understanding how molecules engage in collective motions in a liquid where a network of bonds exists has both fundamental and applied relevance. On the one hand, it can elucidate the ``ordering" role of long-range correlations in an otherwise strongly dissipative system; on the other hand, it can inspire new avenues to control such order to implement sound manipulation. Water represents an ideal investigation case to unfold these general aspects and, across the decades, it has been the focus of thorough scrutiny. Despite this investigative effort, the spectrum of terahertz density fluctuations of water largely remains a puzzle for Condensed Matter physicists. To unravel it, we compare previous scattering measurements of water spectra with new ones on ice. Thanks to the unique asset of Bayesian inference, we draw a more detailed portrayal of the phonon response of ice. The comparison with the one of liquid water challenges the current understanding of density fluctuations in water, or more in general, of any networked liquid.
description: 30 pages, 9 figures
Low-frequency shear Alfvén waves at DIII-D: theoretical interpretation of experimental observations
Creators: name: Ma, Ruirui
name: Heidbrink, W. W.
name: Chen, Liu
name: Zonca, Fulvio
name: Qiu, Zhiyong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The linear properties of the low-frequency shear Alfvén waves such as those associated with the beta-induced Alfvén eigenmodes (BAEs) and the low-frequency modes observed in reversed-magnetic-shear DIII-D discharges (W. Heidbrink, et al 2021 Nucl. Fusion 61 066031) are theoretically investigated and delineated based on the theoretical framework of the general fishbone-like dispersion relation (GFLDR). By adopting representative experimental equilibrium profiles, it is found that the low-frequency modes and BAEs are, respectively, the reactive-type and dissipative-type unstable modes with dominant Alfvénic polarization, thus the former being more precisely called low-frequency Alfvén modes (LFAMs). More specifically, due to different instability mechanisms, the maximal drive of BAEs occurs, in comparison to LFAMs, when the minimum of the safety factor ($q_{min}$) deviates from a rational number. Meanwhile, the BAE eigenfunction peaks at the radial position of the maximum energetic particle pressure gradient, resulting in a large deviation from the $q_{min}$ surface. Moreover, the ascending frequency spectrum patterns of the experimentally observed BAEs and LFAMs can be theoretically reproduced by varying $q_{min}$ and also be well interpreted based on the GFLDR. The present analysis illustrates the solid predictive capability of the GFLDR and its practical usefulness in enhancing the interpretative capability of both experimental and numerical simulation results.
Open Call - Guide for Applicants (COESO D.2.1)
Creators: name: Caires, Andreyna
name: Vidal, Frédéric
Publisher: name: Zenodo
Year: 2022
Subjects: COESO Project
Citizen Science
Participatory Research
SSH
Open Call
Cascade Funding

description: The COESO project (Collaborative Engagement on Societal Issues) launched an Open Call in November 2021 to fund 5 pilot projects to implement innovative Citizen Science projects in Social Sciences and Humanities (SSH), inviting civil society and researchers to apply. This guide is the main source of information for the Open Call – COESO-CALL-2021 – and contains the relevant information to guide applicants in preparing and submitting a project proposal.
High-Contrast Direct Imaging Of Exoplanets And Circumstellar Disks: From The Self-Coherent Camera To Nici Data Analysis
Creators: name: Mazoyer, Johan
Publisher: name: Zenodo
Year: 2014
Subjects: Exoplanets
circumstellar disks
direct imaging
high-contrast imaging
high angular resolution
coronography
wavefront sensor
adaptive optics

description: Of the 1800 exoplanets detected to date, only 50 were by direct imaging. However, by allowing the observation of circumstellar disks and planets (sometimes simultaneously around the same star, as in the case of β-pictoris), this method is a fundamental tool for the understanding of planetary formation. In addition, direct access to the light of the detected objects allows spectroscopy, paving the way for the first time to the chemical and thermal analysis of their atmosphere and surface. However, direct imaging raises specific challenges : accessing objects fainter than their star (with a ratio up to 108 to 1011), and separated only by a fraction of arc-second. To obtain these values, several techniques must be implemented. A coronagraph, used in complement with a deformable mirror and active optical aberration correction methods, produces high-contrast images, which can be further processed by differential imaging techniques. My PhD thesis work took place at the intersection of these techniques. At first, I analyzed, in simulation and experimentally on the THD –french acronym for very high contrast– bench of the Paris Observatory, the performance of the self-coherent camera, a wavefront sensing technique used to correct the optical aberrations in the focal plane. I managed to obtained high-contrast zones (called dark holes) with performance up to 3.108 between 5 and 12 λ/D, in monochromatic light. I also started an analysis of the performance in narrow spectral bands. In the second part of my thesis, I applied the latest differential imaging techniques to high contrast images from another coronagraphic instrument, NICI. The processing of these data revealed unprecedented views of the dust disk orbiting HD 15115.
description: Defended by the author on September 30th, 2014 at Paris Observatory for the obtention of the title of Doctor in Astronomy and Astrophysics of the Paris Diderot University. 219 pages, in french.
Adversarial samples on android malware detection systems for IoT systems
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Internet of Things
malware detection
adversarial samples
machine learning

description: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. Many IoT (Internet of Things) systems run Android systems or Android-like systems. With the continuous development of machine learning algorithms, the learning-based Android malware detection system for IoT devices has gradually increased. However, these learning-based detection models are often vulnerable to adversarial samples. An automated testing framework is needed to help these learning-based malware detection systems for IoT devices perform security analysis. The current methods of generating adversarial samples mostly require training parameters of models and most of the methods are aimed at image data. To solve this problem, we propose a testing framework for learning-based Android malware detection systems (TLAMD) for IoT Devices. The key challenge is how to construct a suitable fitness function to generate an effective adversarial sample without affecting the features of the application. By introducing genetic algorithms and some technical improvements, our test framework can generate adversarial samples for the IoT Android application with a success rate of nearly 100% and can perform black-box testing on the system.
Mycetophila pumila Winnertz 1864
Creators: name: El Mouden, Mohamed Amin
name: Chandler, Peter J.
name: Saidoun, Imane
name: Driauach, Ouafaa
name: Belqat, Boutaïna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Mycetophilidae
Mycetophila
Mycetophila pumila

description: Mycetophila pumila Winnertz, 1864
Material examined.
Morocco – Middle Atlas Region • 1 ♂, 15 ♀♀; Gouffre Izora; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24156 • 5 ♂♂; Grotte Bouslama; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24157 • 1 ♂; Vallée des oiseaux; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24158; • 1 ♂; Forêt Bab Boudir; 20/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24155.
North African distribution.
New to Morocco and North Africa.
description: Published as part of El Mouden, Mohamed Amin, Chandler, Peter J., Saidoun, Imane, Driauach, Ouafaa & Belqat, Boutaïna, 2025, A new species of Docosia Winnertz, 1864 and new records of fungus gnats (Diptera, Bolitophilidae, Keroplatidae and Mycetophilidae) from North Africa, pp. 349-379 in ZooKeys 1233 on pages 349-379, DOI: 10.3897/zookeys.1233.130502
On doubly symmetric orbits
Creators: name: Frauenfelder, Urs
name: Moreno, Agustin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Symplectic Geometry (math.SG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this article, for Hamiltonian systems with two degrees of freedom, we study doubly symmetric periodic orbits, i.e. those which are symmetric with respect to two (distinct) commuting antisymplectic involutions. These are ubiquitous in several problems of interest in mechanics. We show that, in dimension four, doubly symmetric periodic orbits cannot be negative hyperbolic. This has a number of consequences: (1) all covers of doubly symmetric orbits are good, in the sense of Symplectic Field Theory; (2) a non-degenerate doubly symmetric orbit is stable if and only if its CZ-index is odd; (3) a doubly symmetric orbit does not undergo period doubling bifurcation; and (4) there is always a stable orbit in any collection of doubly symmetric periodic orbits with negative SFT-Euler characteristic (as coined by the authors in arXiv 2206.00627). The above results follow from: (5) a symmetric orbit is negative hyperbolic if and only its two B-signs (introduced by the authors in arXiv 2109.09147) differ.
description: 21 pages, 3 figures, comments welcome
Open Call - Guide for Applicants (COESO D.2.1)
Creators: name: Caires, Andreyna
name: Vidal, Frédéric
Publisher: name: Zenodo
Year: 2021
Subjects: COESO Project
Citizen Science
Participatory Research
SSH
Open Call
Cascade Funding

description: The COESO project (Collaborative Engagement on Societal Issues) launched an Open Call in November 2021 to fund 5 pilot projects to implement innovative Citizen Science projects in Social Sciences and Humanities (SSH), inviting civil society and researchers to apply. This guide is the main source of information for the Open Call – COESO-CALL-2021 – and contains the relevant information to guide applicants in preparing and submitting a project proposal.
Defying eternal inflation in warm inflation with a negative running
Creators: name: Montefalcone, Gabriele
name: Ramos, Rudnei O.
name: Vicente, Gustavo S.
name: Freese, Katherine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It was pointed out previously~\cite{Kinney:2014jya} that a sufficiently negative running of the spectral index of curvature perturbations from (ordinary i.e. cold) inflation is able to prevent eternal inflation from ever occurring. Here, we reevaluate those original results, but in the context of warm inflation, in which a substantial radiation component (produced by the inflaton) exists throughout the inflationary period.
 We demonstrate that the same general requirements found in the context of ordinary (cold) inflation also hold true in warm inflation; indeed an even tinier amount of negative running is sufficient to prevent eternal inflation. This is particularly pertinent, as models featuring negative running are more generic in warm inflation scenarios. Finally, the condition for the existence of eternal inflation in cold inflation -- that the curvature perturbation amplitude exceed unity on superhorizon scales -- becomes more restrictive in the case of warm inflation. The curvature perturbations must be even larger, i.e. even farther out on the potential, away from the part of the potential where observables, e.g. in the Cosmic Microwave Background, are produced.
description: 14 pages, Preprint Numbers: UTWI-40-2023, NORDITA 2023-067
Q2 Dependence of Quadrupole Strength in the γ*p→Δ+(1232)→pπ0 Transition
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2002
Subjects: CLAS Collaboration

description: Models of baryon structure predict a small quadrupole deformation of the nucleon due to residual tensor forces between quarks or distortions from the pion cloud. Sensitivity to quark versus pion degrees of freedom occurs through the [Formula presented] dependence of the magnetic [Formula presented], electric [Formula presented], and scalar [Formula presented] multipoles in the [Formula presented] transition. We report new experimental values for the ratios [Formula presented] and [Formula presented] over the range [Formula presented], extracted from precision [Formula presented] data using a truncated multipole expansion. Results are best described by recent unitary models in which the pion cloud plays a dominant role. © 2002 The American Physical Society.
Multi-Wavelength Study Of The Debris Disk Of Βpic
Creators: name: Keppler, Miriam
name: Lagrange, Anne-Marie
name: Augereau, Jean-Charles
Publisher: name: Zenodo
Year: 2016

description: We revisit the modeling of the βPic disk proposed by Augereau et al. (2001), under consideration of new data obtained at ESO/VLT, ALMA and HST and the planet βPic b discovered in 2008. We take into account the dynamical perturbation of a massive companion on a slightly inclined orbit on a population of colliding planetesimals, as well as radiation pressure and the small grains' optical properties.
Meta-analysis of reward processing in major depressive disorder reveals distinct abnormalities within the reward circuit
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Adult
Brain Mapping
Case-Control Studies
Depressive Disorder, Major
Female
Humans
Magnetic Resonance Imaging
Male
Neural Pathways
Neuroimaging
Prefrontal Cortex
Reward
Ventral Striatum

description: Abstract Many neuroimaging studies have investigated reward processing dysfunction in major depressive disorder. These studies have led to the common idea that major depressive disorder is associated with blunted responses within the reward circuit, particularly in the ventral striatum. Yet, the link between major depressive disorder and reward-related responses in other regions remains inconclusive, thus limiting our understanding of the pathophysiology of major depressive disorder. To address this issue, we performed a coordinate-based meta-analysis of 41 whole-brain neuroimaging studies encompassing reward-related responses from a total of 794 patients with major depressive disorder and 803 healthy controls. Our findings argue against the common idea that major depressive disorder is primarily linked to deficits within the reward system. Instead, our results demonstrate that major depressive disorder is associated with opposing abnormalities in the reward circuit: hypo-responses in the ventral striatum and hyper-responses in the orbitofrontal cortex. The current findings suggest that dysregulated corticostriatal connectivity may underlie reward-processing abnormalities in major depressive disorder, providing an empirical foundation for a more refined understanding of abnormalities in the reward circuitry in major depressive disorder.
Theories of gravity with nonminimal matter-curvature coupling and the de Sitter swampland conjectures
Creators: name: Bertolami, Orfeu
name: Gomes, Cláudio
name: Sá, Paulo M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We discuss, in the context of alternative theories of gravity with nonminimal coupling between matter and curvature, if inflationary solutions driven by a single scalar field can be reconciled with the swampland conjectures about the emergence of de Sitter solutions in string theory. We find that the slow-roll conditions are incompatible with the swampland conjectures for a fairly generic inflationary solution in such alternative theories of gravity.
description: 12 pages
Employing pre-stress to generate finite cloaks for antiplane elastic waves
Creators: name: Parnell, William J.
name: Norris, Andrew N.
name: Shearer, Tom
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It is shown that nonlinear elastic pre-stress of neo-Hookean hyperelastic materials can be used as a mechanism to generate finite cloaks and thus render objects near-invisible to incoming antiplane elastic waves. This approach appears to negate the requirement for special cloaking metamaterials with inhomogeneous and anisotropic material properties in this case. These properties are induced naturally by virtue of the pre-stress. This appears to provide a mechanism for broadband cloaking since dispersive effects due to metamaterial microstructure will not arise.
description: 4 pages, 2 figures
Alberta Occupational Medicine Newsletter: Fall 1996
Creators: name: White, Franklin M. M.
name: Corbet, Kenneth (Ed)
Publisher: name: University of Calgary
Year: 1996
Subjects: Georgius Agricola
mining
technological chemistry
workplace hazards

description: Editor's Comments -- De Re Metallica: The Treatise of Georgius Agricola Revisited --Dr. Tee L. Guidotti Receives University Award -- Guide to Health and Safety Internet Resources -- Protecting Eyes from Solar Hazards -- Upcoming Conferences
Probing RG flows, symmetry resolution and quench dynamics through the capacity of entanglement
Creators: name: Arias, Raúl
name: Di Giulio, Giuseppe
name: Keski-Vakkuri, Esko
name: Tonni, Erik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compare the capacity of entanglement with the entanglement entropy by considering various aspects of these quantities for free bosonic and fermionic models in one spatial dimension, both in the continuum and on the lattice. Substantial differences are observed in the subleading terms of these entanglement quantifiers when the subsystem is made by two disjoint intervals, in the massive scalar field and in the fermionic chain. We define $c$-functions based on the capacity of entanglement similar to the one based on the entanglement entropy, showing through a numerical analysis that they display a monotonic behaviour under the renormalisation group flow generated by the mass. The capacity of entanglement and its related quantities are employed to explore the symmetry resolution. The temporal evolutions of the capacity of entanglement and of the corresponding contour function after a global quench are also discussed.
description: 63 pages, 12 figures
Alberta Occupational Medicine Newsletter: Summer 1995
Creators: name: Guidotti, Tee L.
name: Corbet, Kenneth (Ed)
name: Gibson, E. S.
Publisher: name: University of Calgary
Year: 1995
Subjects: back pain
disability
chronic pain

description: Editor's Comments -- Report from the Fourth International Conference on Safe Communities -- Trying to Explain the Unexplainable: A Conceptual Model for Low Back Disability --Upcoming Conferences
Intrinsic Ultrathin Topological Insulators Grown via MBE Characterized by in-situ Angle Resolved Photoemission Spectroscopy
Creators: name: Lee, J. J.
name: Schmitt, F. T.
name: Moore, R. G.
name: Vishik, I. M.
name: Ma, Y.
name: Shen, Z. X.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate the capability of growing high quality ultrathin films of the topological insulators Bi2Se3 and Bi2Te3 using molecular beam epitaxy. Unlike previous growth techniques, which often pin the Fermi energy in the conduction band for ultrathin samples, our samples remain intrinsic bulk insulators. We characterize these films using in-situ angle resolved photoemission spectroscopy (ARPES), which is a direct probe of bandstructure, and ex-situ atomic force microscopy. We find that the conduction band lies above the Fermi energy, indicating bulk insulating behavior with only the surface states crossing EF . We conclude that thermal cracking of Te and Se in our growth leads to higher quality thin films, paving the way for future improvements in growth of topological insulators.
GOLFIG Chemo-Immunotherapy in Metastatic Colorectal Cancer Patients. A Critical Review on a Long-Lasting Follow-Up
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: colorectal cancer
metastatic
chemotherapy
immunotherapy
GOLFIG
phase III clinical trial
real-world medicine

description: © Copyright © 2019 Caraglia, Correale, Giannicola, Staropoli, Botta, Pastina, Nesci, Caporlingua, Francini, Ridolfi, Mini, Roviello, Ciliberto, Agostino, Strangio, Azzarello, Nardone, Falzea, Cappabianca, Bocchetti, D'Arrigo, Tripepi, Tassone, Addeo, Giordano, Pirtoli, Francini and Tagliaferri. Background: GOLFIG is a chemo-immunotherapy regimen established in preclinical models that combines gemcitabine + FOLFOX (fluoropyrimidine backbone coupled to oxaliplatin) poly-chemotherapy with low-dose s. c. recombinant interleukin-2 (rIL-2) and granulocyte-macrophage colony stimulating factor (GM-CSF). Promising antitumor effects in metastatic colorectal cancer (mCRC) patients were obtained in previous phase II and III trials. Here we report the results of 15 years of follow-up. Methods: This is a multi-institutional retrospective analysis including 179 mCRC patients receiving GOLFIG regimen between June 2002 and June 2018. Sixty-two of them received the treatment as frontline (enrolled in the GOLFIG-2 phase III trial) and 117 as second/third line (49 enrolled in the GOLFIG-1 phase II trial and 68 as compassionate use). One hundred twelve patients showed a primary left side and 67 a primary right side; K/N-ras mutational status was available in 74 cases, and an activating mutation was detected in 33. Kaplan–Meier and Cox regression analyses were carried out to relate PFS and OS with different parameters. Results: Overall, we recorded a mean PFS and OS of 15.28 (95% CI: 10.36–20.20) and 24.6 (95% CI: 19.07–30.14) months, respectively, with 14 patients surviving free of progression for 10 years. This regimen, in our updated survey of the GOLFIG-2 trial, confirmed superiority over FOLFOX in terms of PFS (hazard ratio (HR) = 0.58, p = 0.006) with a trend to a longer OS (HR = 0.69, P = 0.06) in the first line. Our analysis also confirmed significant antitumor activity in pre-treated patients, reporting a mean PFS and OS of 12.55 (95% CI: 7.19–17.9) and 20.28 (95% CI: 14.4–26.13) months, respectively. Immune-related adverse events (irAEs) were recorded in 24% of the cases and were related to a longer survival (HR = 0.36; P = 0.0001). Finally, patients' outcome was not correlated to sex, sidedness, and MT-K/N-ras. Conclusions: The GOLFIG regimen is a reliable underestimated therapeutic option in pre-treated mCRC patients and offers a strong rationale to design further trials.
Casimir force induced by imperfect Bose gas
Creators: name: Napiorkowski, Marek
name: Piasecki, Jaroslaw
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present a study of the Casimir effect in an imperfect (mean-field) Bose gas contained between two infinite parallel plane walls. The derivation of the Casimir force follows from the calculation of the excess grand canonical free energy density under periodic, Dirichlet, and Neumann boundary conditions with the use of the steepest descent method. In the one-phase region the force decays exponentially fast when distance $D$ between the walls tends to infinity. When Bose-Einstein condensation point is approached the decay length in the exponential law diverges with critical exponent $ν_{IMP}=1$, which differs from the perfect gas case where $ν_{P}=1/2$. In the two-phase region the Casimir force is long-range, and decays following the power law $D^{-3}$, with the same amplitude as in the perfect gas.
Alberta Occupational Medicine Newsletter: Fall 1993
Creators: name: Guidotti, Tee L.
name: Corbet, Kenneth (Ed)
Publisher: name: University of Calgary
Year: 1993
Subjects: residency programs
occupational health and safety
OHS

description: Editor's Comments -- Good Year for Canada's First Residency in Occupational Medicine: First Graduate and Royal College Approval -- Occupational Health and Safety: Where do we go from here? -- Occupational Health and Safety Publications from Alberta Labour
Infinite series models of flux relaxation and vortex penetration constructed at critical points and their unification
Creators: name: Ma, Rongchao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The information about the current-carrying ability of a type-II superconductor can be obtained by studying the flux relaxation and vortex penetration phenomena in the superconductor. In early studies, the infinite series models of the flux relaxation and vortex penetration phenomena were constructed at a vanishing current density and vanishing internal field, respectively. However, this is not the only possibility. Here it is shown that one can reconstruct the theoretical models at the critical points. The new polynomial model of the flux relaxation (vortex penetration) phenomenon was constructed by expanding the vortex activation energy as an infinite series of the current density (internal field) about the critical current density (equilibrium internal field). The unification of the polynomial models was proposed. The inverse model of the flux relaxation (vortex penetration) phenomenon was also constructed by expanding the vortex activation energy as an infinite series of the inverse current density (inverse internal field) about the critical current density (equilibrium internal field).
description: 10 pages, 2 figures
Polo-like kinase 1 (Plk1) inhibition synergizes with taxanes in triple negative breast cancer
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2019
Subjects: Animals
Antineoplastic Combined Chemotherapy Protocols
Benzimidazoles
Cell Cycle Proteins
Cell Line, Tumor
Docetaxel
Drug Resistance, Neoplasm
Drug Synergism
Female
Humans
Mice
Piperazines
Protein Kinase Inhibitors
Protein-Serine-Threonine Kinases
Proto-Oncogene Proteins
Pyrazoles
Quinazolines
Thiophenes
Triple Negative Breast Neoplasms
Tumor Burden
Xenograft Model Antitumor Assays

description: © 2019 Giordano et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Within triple negative breast cancer, several molecular subtypes have been identified, underlying the heterogeneity of such an aggressive disease. The basal-like subtype is characterized by mutations in the TP53 gene, and is associated with a low pathologic complete response rate following neoadjuvant chemotherapy. In a genome-scale short hairpin RNA (shRNA) screen of breast cancer cells, polo-like kinase 1 (Plk1) was a frequent and strong hit in the basal breast cancer cell lines indicating its importance for growth and survival of these breast cancer cells. Plk1 regulates progression of cells through the G2-M phase of the cell cycle. We assessed the activity of two ATP-competitive Plk1 inhibitors, GSK461364 and onvansertib, alone and with a taxane in a set of triple negative breast cancer cell lines and in vivo. GSK461364 showed synergism with docetaxel in SUM149 (Combination Index 0.70) and SUM159 (CI, 0.62). GSK461364 in combination with docetaxel decreased the clonogenic potential (interaction test for SUM149 and SUM159, p<0.001 and p = 0.01, respectively) and the tumorsphere formation of SUM149 and SUM159 (interaction test, p = 0.01 and p< 0.001). In the SUM159 xenograft model, onvansertib plus paclitaxel significantly decreased tumor volume compared to single agent paclitaxel (p<0.0001). Inhibition of Plk1 in combination with taxanes shows promising results in a subset of triple negative breast cancer intrinsically resistant to chemotherapy. Onvansertib showed significant tumor volume shrinkage when combined with paclitaxel in vivo and should be considered in clinical trials for the treatment of triple negative cancers.