cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Directed Transmission Method, A Fully Asynchronous approach to Solve Sparse Linear Systems in Parallel
Creators: name: Wei, Fei
name: Yang, Huazhong
Publisher: name: arXiv
Year: 2008
Subjects: subject: Numerical Analysis (math.NA)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65F10, 65F50, 68M14

description: In this paper, we propose a new distributed algorithm, called Directed Transmission Method (DTM). DTM is a fully asynchronous and continuous-time iterative algorithm to solve SPD sparse linear system. As an architecture-aware algorithm, DTM could be freely running on all kinds of heterogeneous parallel computer. We proved that DTM is convergent by making use of the final-value theorem of Laplacian Transformation. Numerical experiments show that DTM is stable and efficient.
description: v1: poster presented in SPAA'08; v2: full paper; v3: rename EVS to GNBT; v4: reuse EVS. More info, see my web page at http://weifei00.googlepages.com
Connect the Lorentz Violation to the Glashow Resonance Event
Creators: name: Xu, Ding-Hui
name: Rong, Shu-Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The recent reported Glashow resonance (GR) event shows a promising prospect in the test of the Lorentz violation (LV) by the high-energy astrophysical neutrinos (HANs) around the resonant energy. However, since the production source and the energy spectra of HANs are uncertain at present, moderate LV effects may be concealed at the TeV energy-scale. In this paper, we propose the LV Hamiltonian of a special texture which can lead to the decoupling of $ν_μ$ ($\barν_μ$). On the base of the decoupling, a noticeable damping of the GR event rate is shown for the HANs from the source dominated by $\barν_μ$, irrespective of the energy spectra of the HANs at Earth. Accordingly, the observation of GR events may bring stringent constraints on the LV and the production mechanism of HANs.
description: 13pages, 3figures
SHAPE-ID Toolkit Resources - Top Ten Tips Collection
Creators: name: SHAPE-ID
Publisher: name: Zenodo
Year: 2021
Subjects: Interdisciplinary, Transdisciplinary, Collaborative research, Integration, Arts Humanities and Social Sciences, Top Ten Tips

description: SHAPE-ID partners have drawn upon their experience of inter- and transdisciplinary research to provide their top ten practical tips that offer our distilled wisdom on seven key tasks regarding inter- and transdisciplinary research, namely writing a research proposal, multi-stakeholder collaborations, working with policymakers, evaluating research, research funding programmes, developing a career and mentoring
L'humain : allié de l'IAg
Creators: name: Roberge, Marie-Ève
Publisher: name: Université de Sherbrooke, Service de soutien à la formation
Year: 2025
Subjects: Pédagogie universitaire
Intelligence articielle--Applications en éducation
IAg
Requêtes
Éthique
Intelligence artificielle générative
Intelligence artificielle--Aspect moral

description: Présentation effectuée dans le cadre de la Table de gestion administrative de l’Université de Sherbrooke et qui vise à soutenir le développement des compétences des directions et cadres en termes d’IAg. Les objectifs de la présentation visent à :

Faire connaitre le potentiel des outils d’IAg ; 

Soulever les enjeux de leurs utilisations dans les contextes professionnel ;

Discuter des limites de ces agents conversationnels ainsi que les biais qu’ils peuvent véhiculer. 
description: Ressources éducatives libres

REL

Open Educational Resources

OER
description: Discipline : Éducation

Format :  Texte/HTML

Type de ressource : Objet d'apprentissage
Additional file 12 of DNA methylation and its effects on gene expression during primary to secondary growth in poplar stems
Creators: name: Zhang, Yang
name: Liu, Cong
name: Cheng, He
name: Tian, Shuanghui
name: Liu, Yingying
name: Wang, Shuang
name: Zhang, Huaxin
name: Saqib, Muhammad
name: Wei, Hairong
name: Wei, Zhigang
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 12. KEGG pathway enrichment of the rest of the differentially methylated genes (DMGs) and differentially expressed genes (DEGs). (A) and (B) represent KEGG pathway enrichment of the remaining DMGs and DEGs in primary stems (PS) vs transitional stems (TS), respectively. (C) and (D) represent KEGG pathway enrichment of the remaining DMGs and DEGs in TS vs secondary stems (SS), respectively. The size of the circle represents gene numbers, and the colors represents the q-value.
The antinucleus annihilation reconstruction algorithm of the GAPS experiment
Creators: name: Munini, R.
name: Vannuccini, E.
name: Boezio, M.
name: von Doetinchem, P.
name: Gerrity, C.
name: Lenni, A.
name: Marcelli, N.
name: Quinn, S.
name: Rogers, F.
name: Ryan, J. L.
name: Stoessl, A.
name: Xiao, M.
name: Saffold, N.
name: Tiberio, A.
name: Yamatani, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The General AntiParticle Spectrometer (GAPS) is an Antarctic balloon-borne detector designed to measure low-energy cosmic antinuclei (< 0.25 GeV/n), with a specific focus on antideuterons, as a distinctive signal from dark matter annihilation or decay in the Galactic halo. The instrument consists of a tracker, made up of ten planes of lithium-drifted Silicon Si(Li) detectors, surrounded by a plastic scintillator Time-of-Flight system. GAPS uses a novel particle identification method based on exotic atom capture and decay with the emission of pions, protons, and atomic X-rays from a common annihilation vertex. An important ingredient for the antinuclei identification is the reconstruction of the "annihilation star" topology. A custom antinucleus annihilation reconstruction algorithm, called the "star-finding" algorithm, was developed to reconstruct the annihilation star fully, determining the annihilation vertex position and reconstructing the tracks of the primary and secondary charged particles. The reconstruction algorithm and its performances were studied on simulated data obtained with the Geant4-based GAPS simulation software, which fully reproduced the detector geometry. This custom algorithm was found to have better performance in the vertex resolution and reconstruction efficiency compared with a standard Hough-3D algorithm.
Performance Analysis and Improvements for
the Future Aeronautical Mobile Airport
Communications System (AeroMACS)
Creators: name: Pulini, Paola <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-INF/03 Telecomunicazioni

description: This thesis deals with the development of the upcoming  aeronautical mobile airport communications system (AeroMACS) system. We analyzed the performance of AeroMACS and we investigated potential solutions for enhancing its performance. Since the most critical results correspond to the channel scenario having less diversity1, we tackled this problem investigating potential solutions for increasing the diversity of the system and therefore improving its performance. We accounted different forms of diversity as space diversity and time diversity.
More specifically, space (antenna and cooperative) diversity and time diversity are analyzed as countermeasures for the harsh fading conditions that are typical of airport environments. Among the analyzed techniques, two novel concepts are introduced, namely unequal diversity coding and flexible packet level codes. The proposed techniques have been analyzed on a novel airport channel model, derived from a measurement campaign at the airport of Munich (Germany).  The introduced techniques largely improve the performance of the conventional AeroMACS link; representing thus appealing solutions for the long term evolution of the system.
Three-vortex configurations in trapped Bose-Einstein condensates
Creators: name: Seman, J. A.
name: Henn, E. A. L.
name: Haque, M.
name: Shiozaki, R. F.
name: Ramos, E. R. F.
name: Caracanhas, M.
name: Branco, C. Castelo
name: Tavares, P. E. S.
name: Poveda-Cuevas, F. J.
name: Roati, G.
name: Magalhães, K. M. F.
name: Bagnato, V. S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report on the creation of three-vortex clusters in a $^{87}Rb$ Bose-Einstein condensate by oscillatory excitation of the condensate. This procedure can create vortices of both circulation, so that we are able to create several types of vortex clusters using the same mechanism. The three-vortex configurations are dominated by two types, namely, an equilateral-triangle arrangement and a linear arrangement. We interpret these most stable configurations respectively as three vortices with the same circulation, and as a vortex-antivortex-vortex cluster. The linear configurations are very likely the first experimental signatures of predicted stationary vortex clusters.
description: 4 pages, 4 figures
Bose-Einstein Condensation of Strontium
Creators: name: Stellmer, Simon
name: Tey, Meng Khoon
name: Huang, Bo
name: Grimm, Rudolf
name: Schreck, Florian
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report on the attainment of Bose-Einstein condensation with ultracold strontium atoms. We use the 84Sr isotope, which has a low natural abundance but offers excellent scattering properties for evaporative cooling. Accumulation in a metastable state using a magnetic-trap, narrowline cooling, and straightforward evaporative cooling in an optical trap lead to pure condensates containing 1.5x10^5 atoms. This puts 84Sr in a prime position for future experiments on quantum-degenerate gases involving atomic two-electron systems.
description: 4 pages, 3 figures; minor editorial changes
Sesamia nonagrioides
Creators: name: Aistleitner, Eyjolf
name: Behounek, Gottfried
name: Hoppe, Henri
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Sesamia
Sesamia nonagrioides

description: Sesamia nonagrioides (LEFEBVRE, 1827)
M a t e r i a l u n t e r s u c h t: Brava, Nova Sintra, Sorno, 50 m, 04.+ 30.12.2002, Lem/Covada, 480 m, 30.11.2002, 10.12.2002, 04., 08.+30.01.+ 27.02.2003, San Pedro, 470 m, 03.03.2003, Santana, 490 m, 25.12.2003, 01.01- 28.2.2004, 2.- 30.11.2004, 02.- 27.12.2004, 11.01.+ 20.02.2005, 10.+ 20.10.2007, 127 ex.
V e r b r e i t u n g: palaeosuptropisch-afrosubtropisch.
description: Published as part of Aistleitner, Eyjolf, Behounek, Gottfried & Hoppe, Henri, 2023, Ergänzende Daten zur Noctuiden-Fauna der Kapverden (Cabo Verde) (Lepidoptera, Nolidae, Erebidae, Noctuidae), pp. 475-506 in Linzer biologische Beiträge 54 (2) on page 485, DOI: 10.5281/zenodo.10414294
Evaluation of Silver European EEL (anguilla anguilla) for the implementation of an Effective EEL Management plan in Mediterranean Coastal Lagoons
Creators: name: Brunelli, Federico <1975>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: BIO/09 Fisiologia

description: This thesis presents SEELF (Sustainable EEL fishery) Index, a methodology for evaluation of European eel (Anguilla anguilla) for the implementation of an effective Eel Management Plan, as defined by EU Regulation No.1100/2007.
SEELF uses internal and external indices, age and blood parameters, and selects suitable specimen for restocking; it is also a reliable tool for eel stock management.
In fact, SEELF Index, was developed in two versions: SEELF A, to be used in field operations (catch&release, eel status monitoring) and SEELF B to be used for quality control (food production) and research (eel status monitoring).
Health status was evaluated also by biomarker analysis (ChE), and data were compared with age of eel. Age determination was performed with otolith reading and fish scale reading and a calibration between the two methods was possible.
The study area was the Comacchio lagoon, a brackish coastal lagoon in Italy, well known as an example of suitable environment for eel fishery, where the capability to use the local
natural resources has long been a key factor for  a successful fishery management.
Comacchio lagoon is proposed as an area where an effective EMP can be performed, in agreement with the main features (management of basins, reduction of mortality due to predators,etc.) highlighted for designation of European Restocking Area (ERA). 
The ERA is a new concept, proposed as a pillar of a new strategy on eel management and conservation. Furthermore, the features of ERAs can be useful in the framework of European Scale Eel Management Plan (ESEMP), proposed as a European scale implementation of EMP, providing a more effectiveness of conservation measures for eel management.
Quantum Work Extraction in a Jaynes-Cummings System with Feedback Control
Creators: name: Wallace, Ryan
Publisher: name: Zenodo
Year: 2025
Subjects: Quantum Thermodynamics
Jaynes-Cummings
Quantum Computing
Quantum Decoherence
Quantum Feedback

description: This includes Python simulation code and supporting documents investigating quantum thermodynamics in a two-qubit Jaynes-Cummings system. It explores extractable work (ergotropy) and entanglement under adaptive, delayed feedback control based on the Structured Energy Return (SER) hypothesis. The simulation uses the Lindblad master equation to model the system's evolution with varying coupling strengths and feedback parameters, including a realistic feedback delay. Findings suggest feedback enhances coherence and work extraction, sometimes independently of entanglement measures. An associated experimental proposal outlines potential validation using superconducting circuits.

The python script used for numerical simulation is provided here as well as github.
description: Revised to clarify that SER feedback is applied continuously after feedback delay τf, and to include a no-feedback control case confirming ergotropy collapse without structured intervention. Updated code to reflect added.
Quantum Work Extraction in a Jaynes-Cummings System with Feedback Control
Creators: name: Wallace, Ryan
Publisher: name: Zenodo
Year: 2025
Subjects: Quantum Thermodynamics
Jaynes-Cummings
Quantum Computing
Quantum Decoherence
Quantum Feedback
Ergotropy

description: This includes Python simulation code and supporting documents investigating quantum thermodynamics in a two-qubit Jaynes-Cummings system. It explores extractable work (ergotropy) and entanglement under adaptive, delayed feedback control based on the Structured Energy Return (SER) hypothesis. The simulation uses the Lindblad master equation to model the system's evolution with varying coupling strengths and feedback parameters, including a realistic feedback delay. Findings suggest feedback enhances coherence and work extraction, sometimes independently of entanglement measures. An associated experimental proposal outlines potential validation using superconducting circuits.

The python script used for numerical simulation is provided here as well as github.
description: Revised to clarify that SER feedback is applied continuously after feedback delay τf, and to include a no-feedback control case confirming ergotropy collapse without structured intervention. Updated code to reflect added.

Added citations, and a subsection in conclusions.
Patterns of regional differentiation in post-Soviet Russia
Creators: name: Silvagni, Maria Giulia <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: SECS-P/01 Economia politica

description: This doctoral thesis aims at contributing to the literature on transition economies focusing on the Russian Federations and in particular on regional income convergence and fertility patterns. 
The first two chapter deal with the issue of income convergence across regions. Chapter 1 provides an historical-institutional analysis of the period between the late years of the Soviet Union and the last decade of economic growth and a presentation of the sample with a description of gross regional product composition, agrarian or industrial vocation, labor.
Chapter 2 contributes to the literature on exploratory spatial data analysis with a application to a panel of 77 regions in the period 1994-2008. It provides an analysis of spatial patterns and it extends the theoretical framework of growth regressions controlling for spatial correlation and heterogeneity. 
Chapter 3 analyses the national demographic patterns since 1960 and provides a review of the policies on maternity leave and family benefits. 
Data sources are the Statistical Yearbooks of USSR, the Statistical Yearbooks of the Russian Soviet Federative Socialist Republic and the Demographic Yearbooks of Russia. 
Chapter 4 analyses the demographic patterns in light of the theoretical framework of the Becker model, the Second Demographic Transition and an economic-crisis argument. With national data from 1960, the theoretically issue of the pro or countercyclical relation between income and fertility is graphically analyzed and discussed, together with female employment and education. With regional data after 1994 different panel data models are tested. Individual level data from the Russian Longitudinal Monitoring Survey are employed using the logit model.
Chapter 5 employs data from the Generations and Gender Survey by UNECE to focus on postponement and second births intentions. Postponement is studied through cohort analysis of mean maternal age at first birth, while the methodology used for second birth intentions is the ordered logit model.
Ekpyrotic Non-Gaussianity -- A Review
Creators: name: Lehners, Jean-Luc
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Ekpyrotic models and their cyclic extensions solve the standard cosmological flatness, horizon and homogeneity puzzles by postulating a slowly contracting phase of the universe prior to the big bang. This ekpyrotic phase also manages to produce a nearly scale-invariant spectrum of scalar density fluctuations, but, crucially, with significant non-gaussian corrections. In fact, some versions of ekpyrosis are on the borderline of being ruled out by observations, while, interestingly, the best-motivated models predict levels of non-gaussianity that will be measurable by near-future experiments. Here, we review these predictions in detail, and comment on their implications.
description: 39 pages, 10 figures. Invited review, replaced with version published in Advances in Astronomy
title: Active droploids
Creators: name: Grauer, Jens
name: Schmidt, Falko
name: Pineda, Jesús
name: Midtvedt, Benjamin
name: Löwen, Hartmut
name: Volpe, Giovanni
name: Liebchen, Benno
Publisher: name: Springer Nature
Year: 2024

description: Active matter comprises self-driven units, such as bacteria and synthetic microswimmers, that can spontaneously form complex patterns and assemble into functional microdevices. These processes are possible thanks to the out-of-equilibrium nature of active-matter systems, fueled by a one-way free-energy flow from the environment into the system. Here, we take the next step in the evolution of active matter by realizing a two-way coupling between active particles and their environment, where active particles act back on the environment giving rise to the formation of superstructures. In experiments and simulations we observe that, under light-illumination, colloidal particles and their near-critical environment create mutually-coupled co-evolving structures. These structures unify in the form of active superstructures featuring a droplet shape and a colloidal engine inducing self-propulsion. We call them active droploids—a portmanteau of droplet and colloids. Our results provide a pathway to create active superstructures through environmental feedback.
Anisotropic Carrier Transport in n-Doped 6H-SiC
Creators: name: Ferracioli, Ricardo Tadeu
name: Rodrigues, Clóves Gonçalves
name: Luzzi, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, a study is presented on the charge transport in n-type doped semiconductor 6H-SiC (in both transient and steady state) using a nonequilibrium quantum kinetic theory derived from the method of nonequilibrium statistical operator (NSO), which furnishes a clear description of the irreversible phenomena that occur in the evolution of the analyzed system. We obtain theoretically the dependence on the electric field (applied in the orientation perpendicular or parallel to the c-axis) of the basic macrovariables: the electron drift velocity and the nonequilibrium temperature. The peak points in time evolution of this macrovariables are derived and analyzed.
description: arXiv admin note: substantial text overlap with arXiv:2109.05382
Exact results for an asymmetric annihilation process with open boundaries
Creators: name: Ayyer, Arvind
name: Mallick, Kirone
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider a nonequilibrium reaction-diffusion model on a finite one dimensional lattice with bulk and boundary dynamics inspired by Glauber dynamics of the Ising model. We show that the model has a rich algebraic structure that we use to calculate its properties. In particular, we show that the Markov dynamics for a system of a given size can be embedded in the dynamics of systems of higher sizes. This remark leads us to devise a technique we call the transfer matrix Ansatz that allows us to determine the steady state distribution and correlation functions. Furthermore, we show that the disorder variables satisfy very simple properties and we give a conjecture for the characteristic polynomial of Markov matrices. Lastly, we compare the transfer matrix Ansatz used here with the matrix product representation of the steady state of one-dimensional stochastic models.
description: 18 pages
Pressure Dependence of Electronic, Vibrational and Optical Properties of wurtzite-Boron Nitride
Creators: name: Silvetti, Martino
name: Attaccalite, Claudio
name: Cannuccia, Elena
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Wurtzite Boron Nitride ($w$BN) is a wide band gap BN polymorph with peculiar mechanical properties (hardness and stiffness). After its first synthesis in 1963 as a transformation of hexagonal BN ($h$BN) under high temperature and pressure conditions, a lot of progress have been made in order to stabilize wurtzite phase at atmospheric pressure. Today the crystallization of good quality samples is finally possible. This fact motivates our first principles study of the electronic, vibrational and light absorption and emission properties of $w$BN over a wide range of pressures. Our findings are important in view of the potential use of $w$BN as a dielectric for integration in BN-based technologies in optoelectronics and harsh environment applications.
Quantum Work Extraction in a Jaynes-Cummings System with Feedback Control
Creators: name: Wallace, Ryan
Publisher: name: Zenodo
Year: 2025
Subjects: Quantum Thermodynamics
Jaynes-Cummings
Quantum Computing
Quantum Decoherence
Quantum Feedback

description: This includes Python simulation code and supporting documents investigating quantum thermodynamics in a two-qubit Jaynes-Cummings system. It explores extractable work (ergotropy) and entanglement under adaptive, delayed feedback control based on the Structured Energy Return (SER) hypothesis. The simulation uses the Lindblad master equation to model the system's evolution with varying coupling strengths and feedback parameters, including a realistic feedback delay. Findings suggest feedback enhances coherence and work extraction, sometimes independently of entanglement measures. An associated experimental proposal outlines potential validation using superconducting circuits.

The python script used for numerical simulation is provided here as well as github.
Evaluating Azumaya algebras on cubic surfaces
Creators: name: Bright, Martin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G25 (Primary) 14G20 (Secondary)

description: Let X be a cubic surface over a local number field k. Given an Azumaya algebra on X, we describe the local evaluation map X(k) -> Q/Z in two cases, showing a sharp dependence on the geometry of the reduction of X. We show that a suitably generic cubic surface over a number field, whose reduction at some prime is a cone, has no Brauer-Manin obstruction. This extends results of Colliot-Thélène, Kanevsky and Sansuc.
description: 14 pages; minor changes
End-to-End Speech to Intent Prediction to improve E-commerce Customer Support Voicebot in Hindi and English
Creators: name: Goyal, Abhinav
name: Singh, Anupam
name: Garera, Nikesh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Automation of on-call customer support relies heavily on accurate and efficient speech-to-intent (S2I) systems. Building such systems using multi-component pipelines can pose various challenges because they require large annotated datasets, have higher latency, and have complex deployment. These pipelines are also prone to compounding errors. To overcome these challenges, we discuss an end-to-end (E2E) S2I model for customer support voicebot task in a bilingual setting. We show how we can solve E2E intent classification by leveraging a pre-trained automatic speech recognition (ASR) model with slight modification and fine-tuning on small annotated datasets. Experimental results show that our best E2E model outperforms a conventional pipeline by a relative ~27% on the F1 score.
description: Accepted at EMNLP 2022 Industry Track
Properties of surface waveguides with discontinuities and perturbations in cross-section
Creators: name: Brooke, Gary H.
Publisher: name: University of British Columbia
Year: 2010

description: The first part of this thesis is concerned with theoretical and experimental investigations of step discontinuities on a planar surface waveguide. An approximate theoretical solution to the unbounded discontinuity problem is obtained by bounding the open structure with perfect conductors, since there is a direct relationship between the mode spectra of the two configurations. Mode-matching is used to solve the bounded case. The method is "tested" on four discontinuity configurations considered by other workers. Good agreement with the previous results is obtained in all cases except one for which the original results are shown to be inaccurate. The experimental investigation is carried out on a dielectric coated conductor surface waveguide, supporting the first TM mode, at a frequency of 30 GHz. Standing wave measurements are obtained using a X/2 dipole oriented along the longitudinal component of electric field. The parameters of interest are the magnitude and the phase of the reflection coefficient. The experimental results confirm those obtained theoretically. The theoretical and experimental techniques are later applied in an investigation of a cascaded step discontinuity configuration. The theoretical approach involves the use of wave transmission matrices. Experimental results for the magnitude of the reflection coefficient are found to be in reasonable agreement with theory. The second part of this work describes a theoretical and experimental study of dielectric waveguides, of circular cross-sections, perturbed by axial slots. In particular, the normalized propagation coefficient of the dominant modes with each polarization is determined analytically using a standard perturbation technique and experimentally using an open resonant cavity. The perturbation results give quite a good indication of the trends observed experimentally. It is found that there is an optimum size of the perturbation which gives the maximum separation between the normalized propagation coefficients of the two polarizations.
Athetis ochreosignata AURIVLLIUS 1910
Creators: name: Aistleitner, Eyjolf
name: Behounek, Gottfried
name: Hoppe, Henri
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Athetis
Athetis ochreosignata

description: Athetis ochreosignata AURIVLLIUS, 1910
M a t e r i a l u n t e r s u c h t: Brava, Nova Sintra, Santana, 490 m, 05.+ 28.11.2004, 2 ex., 07.12.2004, Gen.präp. 12197, det. Behounek, 13.12.2013, 2ex., Fogo, Chã das Caldeiras, Casa Forestal, 1550 m, 02.02.2013, 1 ex.
V e r b r e i t u n g: makaronesisch(EndemitderKapverden).
description: Published as part of Aistleitner, Eyjolf, Behounek, Gottfried & Hoppe, Henri, 2023, Ergänzende Daten zur Noctuiden-Fauna der Kapverden (Cabo Verde) (Lepidoptera, Nolidae, Erebidae, Noctuidae), pp. 475-506 in Linzer biologische Beiträge 54 (2) on page 485, DOI: 10.5281/zenodo.10414294
Spreading of wave packets in disordered systems with tunable nonlinearity
Creators: name: Skokos, Ch.
name: Flach, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the spreading of single-site excitations in one-dimensional disordered Klein-Gordon chains with tunable nonlinearity $|u_{l}|^σ u_{l}$ for different values of $σ$. We perform extensive numerical simulations where wave packets are evolved a) without and, b) with dephasing in normal mode space. Subdiffusive spreading is observed with the second moment of wave packets growing as $t^α$. The dependence of the numerically computed exponent $α$ on $σ$ is in very good agreement with our theoretical predictions both for the evolution of the wave packet with and without dephasing (for $σ\geq 2$ in the latter case). We discuss evidence of the existence of a regime of strong chaos, and observe destruction of Anderson localization in the packet tails for small values of $σ$.
description: 9 pages, 7 figures
Experimental Proposal for Testing the Structured Energy Return (SER) Model in Quantum Systems
Creators: name: Wallace, Ryan
Publisher: name: Zenodo
Year: 2025
Subjects: Quantum Decoherence
Structured Energy Return ( SER )
Quantum Feedback
Quantum Error Mitigation
Neutral Atom Arrays
Trapped Ions
Superconducting Qubits

description: This document presents an experimental proposal to test the Structured Energy Return (SER) model, a feedback-based mechanism aimed at mitigating quantum decoherence. The proposal outlines three experimental platforms for SER validation: (1) superconducting qubits in circuit QED, (2) trapped ion qubits in a Paul trap, and (3) neutral atom arrays with Rydberg excitations. Each approach details the required setup, governing Hamiltonians, feedback control mechanisms, observables, and expected outcomes. The proposed experiments aim to determine whether SER can sustain quantum coherence and reshape entropy evolution in open quantum systems. If successful, SER feedback could provide a novel tool for quantum error mitigation.
Diabete ed ischemia critica degli arti inferiori.
Studio del danno della parete arteriosa e del ruolo dell'endotelio circolante nella riparazione tessutale e nella neoangiogenesi
Creators: name: Orrico, Catia <1972>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: MED/22 Chirurgia vascolare

description: Objectives In diabetic and non diabetic patients with peripheral artery obstructive disease (PAOD), we sought to establish whether the vascular wall damage, the mature circulating endothelium and the "in situ" neoangiogenesis are related with each other.
Design In the peripheral blood of diabetic patients suffering critical ischaemia associated  with peripheral artery disease, low levels and poor function of circulating endothelial progenitor cells  (EPCs) were observed. Moreover, circulating endothelial cells (CECs) have been described in different conditions of vascular injury. In this type of disorders, which are all characterized by endothelial damage, neoangiogenesis plays a key role.
Materials In the study we recruited 22 diabetic and 16 non diabetic patients, all of them suffering PAOD and critical ischaemia; healthy subjects and multiorgan donors have also been considered like controls.  
Methods Histopathologic characterization was performed on arterial tissue samples under a light microscope. Flow cytofluorimetric analysis was used to quantify CECs in peripheral blood samples. "In situ" expression of the Vascular Endothelial Growth Factor (VEGF) and Metalloproteinase 9 (MMP-9) transcripts was quantified in a Real Time-PCR analysis. Circulating VEGF concentration was determined by an ELISA assay. 
Results Arterial wall from diabetic patients, compared with non diabetic subjects, revealed a higher incidence of serious lesions (60% vs 47%) and a lower number of capillaries (65% vs 87%). Mean number of CECs/ml was significantly increased in all patients, compared to healthy controls (p=0.001). Compared to healthy subjects, VEGF transcripts expression resulted significantly higher in diabetic patients and in all patients (p<0.05) and a similar result was obtained in the MMP-9 transcripts expression. Serum VEGF concentration was significantly increased in PAOD patients correlated with controls (p=0.0431).
Conclusions Our study demonstrates that in all patients considered, probably, regressive phenomenons prevail on reparative ones, causing an inesorable and progressive degeneration of the vascular wall, worse by diabetes. The vascular damage can be monitored by determining CECs number and its severity and development are emphasized by the MMP-9 transcripts expression. The "in situ"  VEGF increased expression seems to be the evidence of a parietal cells bid to induce local  angiogenesis. This reparing mechanism could induce the EPCs mobilitation by means the release of VEGF from the arterial wall. The mechanism, however, is ineffective like demonstrated by the EPCs reduced number and activities observed in patients suffering PAOD and critical ischaemia.
Nonthermal acceleration radiation of atoms near a black hole in presence of dark energy
Creators: name: Bukhari, Syed Masood A. S.
name: Bhat, Imtiyaz Ahmad
name: Xu, Chenni
name: Wang, Li-Gang
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate how dark energy affects atom-field interaction. To this end, we consider acceleration radiation of a freely falling atom close to a Schwarzschild black hole (BH) in the presence of dark energy characterized by a positive cosmological constant $Λ$. The resulting spacetime is endowed with a BH and a cosmological (or de Sitter) horizon. Our consideration is a \textit{nonextremal} $(1+1)$-dimensional geometry with horizons far apart, giving rise to a flat Minkowski-like region in between the two horizons. Assuming a scalar ($\text{spin}-0$) field in a Boulware-like vacuum state, and by using a basic quantum optics approach, we numerically achieve excitation probabilities for the atom to detect a photon as it falls toward the BH horizon. It turns out that the nature of the emitted radiation deeply drives its origin from the magnitude of $Λ$. In particular, radiation emission is enhanced due to dilation of the BH horizon by dark energy. Also, we report an oscillatory nonthermal spectrum in the presence of $Λ$, and these oscillations, in a varying degree, also depend on BH mass and atomic excitation frequency. We conjecture that such a hoedown may be a natural consequence of a constrained motion due to the bifurcate Killing horizon of the given spacetime. The situation is akin to the Parikh-Wilzcek tunneling approach to Hawking radiation where the presence of extra contributions to the Boltzmann factor deforms the thermality of flux. It apparently hints at field satisfying a modified energy-momentum dispersion relation within classical regime of general relativity arising as an effective low energy consequence of an underlying quantum gravity theory. Our findings may signal new ways of conceiving the subtleties surrounding the physics of dark energy.
description: 13 pages, 4 figures
Sharp threshold functions for the random intersection graph via coupling method?
Creators: name: Rybarczyk, Katarzyna
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C80, 60C05

description: We will present a new method, which enables us to find threshold functions for many properties in random intersection graphs. This method will be used to establish sharp threshold functions in random intersection graphs for k-connectivity, perfect matching containment and Hamilton cycle containment.
Pour une nouvelle poétique de l'extase : Abdelwahab Meddeb et l'héritage des poètes arabes et persans de l'Antiquité et du Moyen Ãge. Comparaisons et pistes de lecture intertextuelles.
Creators: name: Amadessi, Veronica <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: L-LIN/03 Letteratura francese

description: Ce travail a pour objectif dâanalyser la production narrative et poÃ©tique de lâÃ©crivain tunisien Abdelwahab Meddeb, en comparaison avec les ouvrages du Moyen Age arabe et persan. Lâauteur reprend en effet, par le biais de pratiques intertextuelles, les ouvrages des philosophes et des Ã©crivains orientaux qui plus ont marquÃ© le monde musulman, en arrivant Ã  en faire une synthÃ¨se originale. Cette perspective multiculturelle ouvre la voie Ã  une instance narrative polyphonique, oÃ¹ les textes se confondent et se mÃ©langent. En un premier moment, lâÃ©tude porte sur les thÃ©ories intertextuelles et leur application chez Meddeb ; dans la deuxiÃ¨me partie, lâanalyse se concentre sur les correspondances internes Ã  lâÅuvre meddebienne, pour laisser la place, dans la derniÃ¨re partie, aux aspects intertextuels que le texte francophone entretient avec les autres auteurs.
Two-dimensional Brownian motion of anisotropic dimers
Creators: name: Mayer, Daniel B.
name: Sarmiento-Gómez, Erick
name: Escobedo-Sánchez, Manuel A.
name: Segovia-Gutiérrez, Juan Pablo
name: Kurzthaler, Christina
name: Egelhaaf, Stefan U.
name: Franosch, Thomas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the 2D motion of colloidal dimers by single-particle tracking and compare the experimental observations obtained by bright-field microscopy to theoretical predictions for anisotropic diffusion. The comparison is based on the mean-square displacements in the laboratory and particle frame as well as generalizations of the self-intermediate scattering functions, which provide insights into the rotational dynamics of the dimer. The diffusional anisotropy leads to a measurable translational-rotational coupling that becomes most prominent by aligning the coordinate system with the initial orientation of the particles. In particular, we find a splitting of the time-dependent diffusion coefficients parallel and perpendicular to the long axis of the dimer which decays over the orientational relaxation time. Deviations of the self-intermediate scattering functions from pure exponential relaxation are small but can be resolved experimentally. The theoretical predictions and experimental results agree quantitatively.
Workshop: Partizipative Forschung
Creators: name: Prchal, Katarina
name: Bössing, Carina
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: Präsentation
Abschlusstagung
ReWiKs
Fortbildungen
Freiraum-Gruppen
Sexuelle Selbstbestimmung
Behinderung
Sexualität
Menschen mit Behinderungen
Menschen mit Lernschwierigkeiten
Partizipation Forschung

description: Präsentation die im Rahmen der Abschlusstagung des ReWiKs-Projektes am 30.11.2023 gezeigt wurde.

Es wird partizipative Forschung in Bezug zu den Freiraum-Gruppen gesetzt und Lessons Learned daraus abgeleitet.
Welsch Based Multiview Disparity Estimation
Creators: name: Gray, James L.
name: Naman, Aous T.
name: Taubman, David S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this work, we explore disparity estimation from a high number of views. We experimentally identify occlusions as a key challenge for disparity estimation for applications with high numbers of views. In particular, occlusions can actually result in a degradation in accuracy as more views are added to a dataset. We propose the use of a Welsch loss function for the data term in a global variational framework for disparity estimation. We also propose a disciplined warping strategy and a progressive inclusion of views strategy that can reduce the need for coarse to fine strategies that discard high spatial frequency components from the early iterations. Experimental results demonstrate that the proposed approach produces superior and/or more robust estimates than other conventional variational approaches.
description: Published in 2021 IEEE International Conference on Image Processing (ICIP), 5 pages
SHAPE-ID Toolkit Resources - Research Infrastructures Collection
Creators: name: SHAPE-ID
Publisher: name: Zenodo
Year: 2021
Subjects: Interdisciplinarity, Transdisciplinarity, Collaborative research, Integration, Arts, Humanities and Social Sciences, Research Infrastructures

description: This publication explains reasons for developing research infrastructures in the Arts, Humanities and Social Sciences (AHSS), and briefly introduces some European examples. These projects demonstrate how research infrastructures serve as meeting platforms for interdisciplinary endeavours and may support AHSS integration.
La valutazione degli effetti delle politiche di coesione dell'Unione europea sulla crescita regionale
Creators: name: Muccigrosso, Teo <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: SECS-P/02 Politica economica

description: This PhD thesis aims at providing an evaluation of EU Cohesion policy impact on regional growth. It employs methodologies and data sources never before applied for this purpose. Main contributions to the literature concerning EU regional policy effectiveness have been extensively analysed. Moreover, having carried out an overview of the current literature on Cohesion Policy, we deduce that this work introduces innovative features in the field.
The work enriches the current literature with regards to two aspects. The first aspect concerns the use of the instrument of Regression Discontinuity Design in order to examine the presence of a different outcome in terms of growth between Objectives 1 regions and non-Objective 1 regions at the cut-off point (75 percent of EU-15 GDP per capita in PPS) during the two programming periods, 1994-1999 and 2000-2006. The results confirm a significant difference higher than 0.5 percent per year between the two groups.
The other empirical evaluation regards the study of a cross-section regression model based on the convergence theory that analyses the dependence relation between regional per capita growth and EU Cohesion policy expenditure in several fields of interventions. We have built a very fine dataset of spending variables (certified expenditure), using sources of data directly provided from the Regional Policy Directorate of the European Commission.
On the convective instability of hot radiative accretion flows
Creators: name: Yuan, Feng
name: Bu, Defu
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: How many fraction of gas available at the outer boundary can finally fall onto the black hole is an important question. It determines the observational appearance of accretion flows, and is also related with the evolution of black hole mass and spin. Previous two-dimensional hydrodynamical simulations of hot accretion flows find that the flow is convectively unstable because of its inward increase of entropy. As a result, the mass accretion rate decreases inward, i.e., only a small fraction of accretion gas can fall onto the black hole, while the rest circulates in the convective eddies or lost in convective outflows. Radiation is usually neglected in these simulations. In many cases, however, radiative cooling is important. In the regime of the luminous hot accretion flow (LHAF), radiative cooling is even stronger than the viscous dissipation. In the one dimensional case, this implies that the inward increase of entropy will become slower or the entropy even decreases inward in the case of an LHAF. We therefore expect that convective instability becomes weaker or completely disappears when radiative cooling is important. To examine the validity of this expectation, in this paper we perform two-dimensional hydrodynamical simulations of hot accretion flows with strong radiative cooling. We find that compared to the case of negligible radiation, convection only becomes slightly weaker. Even an LHAF is still strongly convectively unstable, its radial profile of accretion rate correspondingly changes little. We find the reason is that the entropy still increases inward in the two-dimensional case.
description: moderately revised, one figure added; 11 pages, 10 figures; accepted by MNRAS
Perdere la testa. La morte di Orfeo, Gustave Moreau, l'arte simbolista: itinerari transculturali
Creators: name: Trentin, Bijoy <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: L-FIL-LET/02 Lingua e letteratura greca

description: Considerando la figura di Orfeo, si mette in luce la ricezione del mito della morte di questo personaggio leggendario nell’arte simbolista, con particolare attenzione per Gustave Moreau. Il lavoro di ricerca vuole approfondire anche la natura epistemologica e metodologica dello studio della sopravvivenza dei classici, prediligendo i processi di tipo comparatistico e quelli che si rifanno alla grande categoria dei Cultural Studies, intendendo attraversare i confini, le barriere, le frontiere, i limiti delle discipline tradizionalmente intese. Viene cosí presa in considerazione anche l’interazione tra cultura verbale, scritta, letteraria e cultura visuale, sottolineando i meccanismi di transtestualità, nelle loro valenze e potenzialità di ibridazione e contaminazione. Si punta, dunque, non solo sulla superificie tematica specifica ma anche sulla filigrana dei procedimenti di legittimazione scientifica e della prasseologia di questa specifica area filologica transdisciplinare.