cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Controllability and universal three-qubit quantum computation with trapped electron states
Creators: name: Pedersen, L. H.
name: Rangan, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how to control and perform universal three-qubit quantum computation with trapped electron quantum states. The three qubits are the electron spin, and the first two quantum states of the cyclotron and axial harmonic oscillators. We explicitly show how the universal gates can be performed. As an example of a non-trivial quantum algorithm, we outline the implementation of the Deutsch-Jozsa algorithm in this system.
description: 4 pages, 1 figure. Typos corrected. The original publication is available at http://www.springerlink.com
Manipulating magnetism and conductance of an adatom-molecule junction on metal surfaces: ab initio study
Creators: name: Tao, Kun
name: Stepanyuk, V. S.
name: Bruno, P.
name: Bazhanov, D. I.
name: Maslyuk, V. V.
name: Brandbyge, M.
name: Mertig, I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The state of the art ab initio calculations reveal the effect of a scanning tunnelling microscopy tip on magnetic properties and conductance of a benzene-adatom sandwich on Cu(001). We concentrate on a benzene-Co system interacting with a Cr tip. Our studies give a clear evidence that magnetism and conductance in molecule-adatom junctions can be tailored by the STM tip. Varying the tip-substrate distance the magnetic moment of the Co adatom can be switched on/off. The interplay between spin-polarized electron transport through the junction and its magnetic properties is demonstrated. A spin-filter effect in the junction is predicted.
description: 4 pages, 3 figures
title: Impact des fuites sur la synchronisation patient-ventilateur en ventilation non invasive à deux niveaux de pression
title: étude sur banc d’essai de deux algorithmes automatiques (AUTO-TRAK® et AUTO-TRIGGER®)
titleType: Subtitle
title: Impact des fuites sur la synchronisation patient-ventilateur en ventilation non invasive à deux niveaux de pression
titleType: AlternativeTitle
Creators: name: Stegmüller, Emilie
name: Hodel, Nils
Publisher: name: Unknown
Year: 0
Subjects: subject: Ventilation non invasive
subject: Algorithmes
subject: Auto-Trak
subject: AUTO-Trigger
subject: Fuites non intentionnelle
subject: Asynchronies
subject: hesav TB Phy

description: Introduction : A l’heure actuelle, il n’existe aucune étude comparant l’efficacité de deux algorithmes en présence de fuites non intentionnelles, un des facteurs majeurs à l’origine d’asynchronies. Objectif : Evaluer la capacité de synchronisation (temps de déphasage et index d’asynchronies) des algorithmes de deux ventilateurs : Philips Repironics A40 (Auto-Trak®) et Löwenstein Prisma VENT40 (AUTO-Trigger®) lors de l’adjonction de fuites dans différentes conditions expérimentales. Méthodologie : Deux ventilateurs ont été́ connectés à un simulateur pulmonaire informatisé modélisant trois mécaniques ventilatoires (MV : saine, restrictive et obstructive) pour quatre niveaux de fuites : sans fuites, avec des fuites moyennes, importantes et inspiratoires. Résultats : Avec une IPAP à 15 cmH2O, avec des MV saine et restrictive, l’Auto-Trak® et l’Auto-Trigger® génèrent respectivement un cyclage tardif avec fuites moyennes (saine : -154 ms (-154; -154 ms) et -266 ms (-280; -261 ms) ; restrictive : -434 ms (-435; -426 ms) et -457 ms (-462; -451 ms)), avec fuites importantes (saine : -167 ms (-174; -154 ms) et -250 ms (-262; -2.4 ms) et restrictive : -415 ms (-416; -412 ms) et -476 ms (-478; -471 ms)). Pour une mécanique obstructive, les temps de déphasage sont précoces avec fuites moyennes (283 ms (282; 283 ms) et 305 ms (300; 312 ms)) et avec fuites importantes (291 ms (289 ; 291 ms) et 236 ms (227; 248 ms)). Conclusion : La supériorité d’un algorithme sur l’autre n’est pas clairement établie. Leur performance relative est influencée par la MV, le niveau d’IPAP, le niveau et le pattern de fuites.
The Product Space Conditions the Development of Nations
Creators: name: Hidalgo, C. A.
name: Klinger, B.
name: Barabasi, A. -L.
name: Hausmann, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Finance (q-fin.GN)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Economies grow by upgrading the type of products they produce and export. The technology, capital, institutions and skills needed to make such new products are more easily adapted from some products than others. We study the network of relatedness between products, or product space, finding that most upscale products are located in a densely connected core while lower income products occupy a less connected periphery. We show that countries tend to move to goods close to those they are currently specialized in, allowing nations located in more connected parts of the product space to upgrade their exports basket more quickly. Most countries can reach the core only if they jump over empirically infrequent distances in the product space. This may help explain why poor countries have trouble developing more competitive exports, failing to converge to the income levels of rich countries.
description: This version is slightly different from the one published in Science
Entanglement robustness via spatial deformation of identical particle wave functions
Creators: name: Piccolini, Matteo
name: Nosrati, Farzam
name: Compagno, Giuseppe
name: Livreri, Patrizia
name: Morandotti, Roberto
name: Franco, Rosario Lo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the problem of entanglement protection against surrounding noise by a procedure suitably exploiting spatial indistinguishability of identical subsystems. To this purpose, we take two initially separated and entangled identical qubits interacting with two independent noisy environments. Three typical models of environments are considered: amplitude damping channel, phase damping channel and depolarizing channel. After the interaction, we deform the wave functions of the two qubits to make them spatially overlap before performing spatially localized operations and classical communication (sLOCC) and eventually computing the entanglement of the resulting state. This way, we show that spatial indistinguishability of identical qubits can be utilized within the sLOCC operational framework to partially recover the quantum correlations spoiled by the environment. A general behavior emerges: the higher the spatial indistinguishability achieved via deformation, the larger the amount of recovered entanglement.
description: 13 pages, 10 figures
Neuronal heterogeneity modulates phase-synchronization between unidirectionally coupled populations with excitation-inhibition balance
Creators: name: Brito, Katiele V. P.
name: Matias, Fernanda Selingardi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Several experiments and models have highlighted the importance of neuronal heterogeneity in brain dynamics and function. However, how such a cell-to-cell diversity can affect cortical computation, synchronization, and neuronal communication is still under debate. Previous studies have focused on the effect of neuronal heterogeneity in one neuronal population. Here we are specifically interested in the effect of neuronal variability on the phase relations between two populations, which can be related to different cortical communication hypotheses. It has been recently shown that two spiking neuron populations unidirectionally connected in a sender-receiver configuration can exhibit anticipated synchronization (AS), which is characterized by a negative phase-lag. This phenomenon has been reported in electrophysiological data of non-human primates and human EEG during a visual discrimination cognitive task. In experiments, the unidirectional coupling could be accessed by Granger causality and can be accompanied by both positive or negative phase difference between cortical areas. Here we propose a model of two coupled populations in which the neuronal heterogeneity can determine the dynamical relation between the sender and the receiver and can reproduce phase relations reported in experiments. Depending on the distribution of parameters characterizing the neuronal firing patterns, the system can exhibit both AS and the usual delayed synchronization regime (DS, with positive phase) as well as a zero-lag synchronization regime and phase bistability between AS and DS. Furthermore, we show that our network can present diversity in their phase relations maintaining the excitation-inhibition balance.
SU(1,1) interferometry with parity measurement
Creators: name: Wang, Shuai
name: Zhang, Jiandong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a new operator method in the Heisenberg representation to obtain the signal of parity measurement within a lossless SU(1,1) interferometer. Based on this method, it is convenient to derive the parity signal directly in terms of input states, including general Gaussian or non-Gaussian state. As applications, we revisit the signal of parity measurement within an SU(1,1) interferometer when a coherent or thermal state and a squeezed vacuum state are considered as input states. In addition, we also obtain the parity signal of a Fock state when it passes through an SU(1,1) interferometer, which is also a new result. Therefore, the operator method proposed in this work may bring convenience to the study of quantum metrology, particularly the phase estimation based on an SU(1,1) interferometer.
description: 7 pages, 1 figure
Tunable reentrant Kondo effect in quantum dots coupled to metal-superconducting hybrid reservoirs
Creators: name: Zalom, Peter
name: Novotný, Tomáš
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We elaborate on the recently introduced concept of reentrant Kondo effect in quantum impurities/dots coupled to hybrid metal-semiconductor contacts [G.~Diniz {\em et al.}, Phys. Rev. B {\bf 101}, 125115 (2020)]. By noticing the equivalence of the originally suggested semiconducting arrangement to an analogous three-terminal quantum dot setup with a normal and two phase-biased superconducting leads introduced in our recent work [Phys. Rev. B {\bf 103}, 035419 (2021)], we put this effect into a new physical context, which enables us a fresh look on the problem. First, we identify the superconducting counterpart of the reentrant Kondo effect and, consequently, reveal its fragility with respect to an underlying doublet-singlet quantum phase transition induced by the particle-hole asymmetry of the reservoir densities of states. This is pertinent (even if previously unnoticed) also in the original as well as extended semiconducting setups, where it puts stringent conditions on the symmetry of the contact density of states. Furthermore, we analyze experimental feasibility of observing the reentrant Kondo effect in its superconducting realization concluding that even present day experiments might see the onset of the reentrant behavior, but fully developed Kondo features cannot be reached due to the required vast separation of energy/temperature scales.
Fashion-Guided Adversarial Attack on Person Segmentation
Creators: name: Treu, Marc
name: Le, Trung-Nghia
name: Nguyen, Huy H.
name: Yamagishi, Junichi
name: Echizen, Isao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper presents the first adversarial example based method for attacking human instance segmentation networks, namely person segmentation networks in short, which are harder to fool than classification networks. We propose a novel Fashion-Guided Adversarial Attack (FashionAdv) framework to automatically identify attackable regions in the target image to minimize the effect on image quality. It generates adversarial textures learned from fashion style images and then overlays them on the clothing regions in the original image to make all persons in the image invisible to person segmentation networks. The synthesized adversarial textures are inconspicuous and appear natural to the human eye. The effectiveness of the proposed method is enhanced by robustness training and by jointly attacking multiple components of the target network. Extensive experiments demonstrated the effectiveness of FashionAdv in terms of robustness to image manipulations and storage in cyberspace as well as appearing natural to the human eye. The code and data are publicly released on our project page https://github.com/nii-yamagishilab/fashion_adv
description: Accepted to Workshop on Media Forensics, CVPR 2021. Project page: https://github.com/nii-yamagishilab/fashion_adv
Spin dynamics in InAs-nanowire quantum-dots coupled to a transmission line
Creators: name: Trif, Mircea
name: Golovach, Vitaly N.
name: Loss, Daniel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study theoretically electron spins in nanowire quantum dots placed inside a transmission line resonator. Because of the spin-orbit interaction, the spins couple to the electric component of the resonator electromagnetic field and enable coherent manipulation, storage, and read-out of quantum information in an all-electrical fashion. Coupling between distant quantum-dot spins, in one and the same or different nanowires, can be efficiently performed via the resonator mode either in real time or through virtual processes. For the latter case we derive an effective spin-entangling interaction and suggest means to turn it on and off. We consider both transverse and longitudinal types of nanowire quantum-dots and compare their manipulation timescales against the spin relaxation times. For this, we evaluate the rates for spin relaxation induced by the nanowire vibrations (phonons) and show that, as a result of phonon confinement in the nanowire, this rate is a strongly varying function of the spin operation frequency and thus can be drastically reduced compared to lateral quantum dots in GaAs. Our scheme is a step forward to the formation of hybrid structures where qubits of different nature can be integrated in a single device.
A framework for describing correlated excitation of solar p modes
Creators: name: Chaplin, W. J.
name: Elsworth, Y.
name: Toutain, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a previous paper we suggested that, for a given p mode, the excitation function is the same as the component of the solar background noise that has an identical surface spherical harmonic projection (over the corresponding range of temporal frequency). An important consequence of this surmise is that the excitation of overtones of a given angular degree and azimuthal order will be correlated in time. In this note, we introduce the basic principles and a mathematical description of correlated mode excitation. We use simple, illustrative examples, involving two modes. Our treatment suggests that in the real observations, any signatures of the correlation would not appear as a correlation of the output amplitudes of overtones, but rather as subtle modifications to the power spectral density at frequencies between the central frequencies of the overtones. These modifications give a contribution to the observed peak asymmetries.
description: 7 pages; accepted for publication in Astronomische Nachrichten
A determination of unpolarised pion fragmentation functions using semi-inclusive deep-inelastic-scattering data: MAPFF1.0
Creators: name: Khalek, Rabah Abdul
name: Bertone, Valerio
name: Nocera, Emanuele R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present MAPFF1.0, a determination of unpolarised charged-pion fragmentation functions (FFs) from a set of single-inclusive $e^+e^-$ annihilation and lepton-nucleon semi-inclusive deep-inelastic-scattering (SIDIS) data. FFs are parametrised in terms of a neural network (NN) and fitted to data exploiting the knowledge of the analytic derivative of the NN itself w.r.t. its free parameters. Uncertainties on the FFs are determined by means of the Monte Carlo sampling method properly accounting for all sources of experimental uncertainties, including that of parton distribution functions. Theoretical predictions for the relevant observables, as well as evolution effects, are computed to next-to-leading order (NLO) accuracy in perturbative QCD. We exploit the flavour sensitivity of the SIDIS measurements delivered by the HERMES and COMPASS experiments to determine a minimally-biased set of seven independent FF combinations. Moreover, we discuss the quality of the fit to the SIDIS data with low virtuality $Q^2$ showing that, as expected, low-$Q^2$ SIDIS measurements are generally harder to describe within a NLO-accurate perturbative framework.
description: MAP is an acronym that stands for "Multi-dimensional Analyses of Partonic distributions" and that we adopted as a name for a collaboration of people engaged in the study of the three-dimensional structure of hadrons. Visit https://github.com/MapCollaboration for more information and https://github.com/MapCollaboration/MontBlanc for access to the public code used in this analysis
Additional file 32 of Interpretation of convolutional neural networks reveals crucial sequence features involving in transcription during fiber development
Creators: name: Liu, Shang
name: Cheng, Hailiang
name: Ashraf, Javaria
name: Zhang, Youping
name: Wang, Qiaolian
name: Lv, Limin
name: He, Man
name: Song, Guoli
name: Zuo, Dongyun
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 32. Title of data: GO enrichment on genes possessed novel motif detected during fiber initiation. Description of data: First ten the most enriched GO terms in biological process, molecular function, cell component, respectively were selected for visualization.
Optimal control of coherent light scattering for binary decision problems
Creators: name: Bouchet, Dorian
name: Rachbauer, Lukas M.
name: Rotter, Stefan
name: Mosk, Allard P.
name: Bossy, Emmanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Due to quantum noise fluctuations, the rate of error achievable in decision problems involving several possible configurations of a scattering system is subject to a fundamental limit known as the Helstrom bound. Here, we present a general framework to calculate and minimize this bound using coherent probe fields with tailored spatial distributions. As an example, we experimentally study a target located in between two disordered scattering media. We first show that the optimal field distribution can be directly identified using a general approach based on scattering matrix measurements. We then demonstrate that this optimal light field successfully probes the presence of the target with a number of photons that is reduced by more than two orders of magnitude as compared to unoptimized fields.
Additional file 33 of Interpretation of convolutional neural networks reveals crucial sequence features involving in transcription during fiber development
Creators: name: Liu, Shang
name: Cheng, Hailiang
name: Ashraf, Javaria
name: Zhang, Youping
name: Wang, Qiaolian
name: Lv, Limin
name: He, Man
name: Song, Guoli
name: Zuo, Dongyun
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 33. Title of data: GO enrichment on genes possessed novel motif detected during fiber elongation. Description of data: First ten the most enriched GO terms in biological process, molecular function, cell component, respectively were selected for visualization.
Mechanisms of musical emotion transfer: insights from 22 composers and the musicological and psychological literature
Creators: name: Varga, Peter J.
name: Parkinson, Brian
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Much psychological and musicological literature has been dedicated to the affective experience of music listeners, but considerably less attention has been given to the role of composers and their intentions in the process of conveying emotion in music. The present qualitative study sought to address this gap in the literature by seeking the perspective of composers in semi-structured interviews that probed their engagement with emotion during composition, the practical considerations shaping their deployment of musical elements, and their manipulation of those elements at a technical level to achieve the desired effects. We used flexible coding within a grounded theory approach to analyse a dataset of 22 in-depth interviews. Results showed that while contemporary composers predominantly conceived of their work in terms consistent with a primarily Western classical idiom, they differed considerably in their use of distinct musical elements to evoke affective responses in listeners, their approaches to listening to music qua composer versus qua listener, and the practical ways in which they differentiated affective reactions and cognitive emotion perceptions.
Reactive Rayleigh-Taylor Turbulence
Creators: name: Chertkov, M.
name: Lebedev, V.
name: Vladimirova, N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The Rayleigh-Taylor (RT) instability develops and leads to turbulence when a heavy fluid falls under the action of gravity through a light one. We consider this phenomenon accompanied by a reactive transformation between the fluids, and study with Direct Numerical Simulations (DNS) how the reaction (flame) affects the turbulent mixing in the Boussinesq approximation. We discuss "slow" reactions where the characteristic reaction time exceeds the temporal scale of the RT instability. In the early turbulent stage, effects of the flame are distributed over a maturing mixing zone, whose development is weakly influenced by the reaction. At later times, the fully mixed zone transforms into a conglomerate of pure-fluid patches of sizes proportional to the mixing zone width. In this "stirred flame'' regime, temperature fluctuations are consumed by reactions in the regions separating the pure-fluid patches. This DNS-based qualitative description is followed by a phenomenology suggesting that thin turbulent flame is of a single-fractal character, and thus distribution of the temperature field is strongly intermittent.
description: 14 pages, 4 figures
Studio della funzione del recettore dell'urochinasi nell'adesione, migrazione e proliferazione cellulare: identificazione di un nuovo inibitore.
Creators: name: Rea, Vincenza Elena Anna
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: La degradazione della matrice extracellulare (ECM) gioca un ruolo importante in vari processi sia fisiologici, quali fibrinolisi, angiogenesi, sviluppo embrionale, che patologici, quali infiammazione e progressione tumorale.
Il sistema di attivazione del plasminogeno, che porta alla formazione di plasmina, potente serin-proteasi, è coinvolto in tutti questi eventi. La molecola chiave di questo sistema, il recettore per l’urochinasi (uPAR), possiede una vasta gamma di funzioni ed è coinvolto in numerosi eventi che includono migrazione cellulare e invasione tissutale.
Nelle patologie infiammatorie l’uPAR svolge un ruolo determinante nel regolare la chemotassi delle cellule del sistema immunitario nel sito di malattia attraverso la sua interazione con i recettori per l’fMLF (FPR).
Abbiamo quindi ricercato piccole molecole solubili in grado di inibire l’interazione uPAR/FPR da usare come potenziali farmaci. Attualmente, le piccole molecole solubili costituiscono una delle opzioni terapeutiche più attraenti, sia per la loro bio-disponibilità per via orale sia per i bassi costi di produzione.
I potenziali inibitori sono stati selezionati mediante l’utilizzo di un metodo computazionale, il “Virtual Screening”. Esso consiste in una rapida selezione di ampie librerie virtuali di composti organici solubili allo scopo di identificare le molecole che possano legarsi più favorevolmente ad un dato bersaglio molecolare. La nostra ricerca di inibitori si è focalizzata sul dominio funzionale dell’uPAR importante per le interazioni con gli FPR, ovvero la sequenza SRSRY (a.acidi 88-92), e sul dominio di legame alla vitronectina (VN). Infatti, questi due domini condividono due residui aminoacidici (R91, Y92). Inoltre, l’adesione cellulare mediata dall’interazione uPAR-VN facilita anch’essa il richiamo di cellule dell’immunità innata nei siti dell’infiammazione.
Le molecole che hanno soddisfatto le interazioni chiave (legami H, interazioni ioniche e idrofobiche) sono state selezionate come possibili ligandi e i composti con lo “score” più elevato sono stati successivamente caratterizzati in vitro, attraverso saggi biologici, per i loro effetti su adesione, migrazione e proliferazione cellulare.
Sono stati quindi identificati due inibitori, specifici per l’uPAR, in grado di ridurre drasticamente la chemotassi indotta sia da agonisti dell’uPAR, sia da ligandi specifici per gli FPR. Le molecole inibitorie sono state testate prima in cellule epiteliali HEK-293 transfettate con uPAR e, successivamente, in cellule della linea leucocitaria KG1 e cellule primarie da sangue periferico.
Poiché l’uPAR è fortemente espresso in diverse patologie neoplastiche e infiammatorie, ci aspettiamo che una nuova terapia basata sull’utilizzo di tali piccole molecole possa essere specifica e poco tossica.
Inquinamento atmosferico a Napoli: inquadramento fisico del fenomeno ed individuazione di strategie di previsione, controllo e mitigazione.
Creators: name: Fortelli, Alberto
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il lavoro di tesi ha affrontato la problematica dell'inquinamento atmosferico presente nell'area metropolitana di Napoli, indagando su tutte le componenti strutturali e meteorologiche che svolgono un ruolo attivo nel fenomeno. I risultati confermano il ruolo di primaria importanza svolto dalle condizioni meteorologiche ed evidenziano che la forte predisposizione a superare i valori limite di concentrazione del parametro PM10 che si osserva a Napoli dipende, in molti casi, dalla sovrapposizione delle principali dinamiche fisiche di generazione dello smog.
Resource theory of imaginarity: Quantification and state conversion
Creators: name: Wu, Kang-Da
name: Kondra, Tulja Varun
name: Rana, Swapan
name: Scandolo, Carlo Maria
name: Xiang, Guo-Yong
name: Li, Chuan-Feng
name: Guo, Guang-Can
name: Streltsov, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Complex numbers are widely used in both classical and quantum physics, and are indispensable components for describing quantum systems and their dynamical behavior. Recently, the resource theory of imaginarity has been introduced, allowing for a systematic study of complex numbers in quantum mechanics and quantum information theory. In this work we develop theoretical methods for the resource theory of imaginarity, motivated by recent progress within theories of entanglement and coherence. We investigate imaginarity quantification, focusing on the geometric imaginarity and the robustness of imaginarity, and apply these tools to the state conversion problem in imaginarity theory. Moreover, we analyze the complexity of real and general operations in optical experiments, focusing on the number of unfixed wave plates for their implementation. We also discuss the role of imaginarity for local state discrimination, proving that any pair of real orthogonal pure states can be discriminated via local real operations and classical communication. Our study reveals the significance of complex numbers in quantum physics, and proves that imaginarity is a resource in optical experiments.
description: 13 pages, 2 figures. Accompanying article for arXiv:2007.14847
Blázquez-Salcedo-Knoll-Radu Wormholes Are Not Solutions to the Einstein-Dirac-Maxwell Equations
Creators: name: Danielson, Daine L.
name: Satishchandran, Gautam
name: Wald, Robert M.
name: Weinbaum, Robert J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, Blázquez-Salcedo, Knoll, and Radu (BSKR) have given a class of static, spherically symmetric, traversable wormhole spacetimes with Dirac and Maxwell fields. The BSKR wormholes are obtained by joining a classical solution to the Einstein-Dirac-Maxwell (EDM) equations on the "up" side of the wormhole ($r \geq 0$) to a corresponding solution on the "down" side of the wormhole ($r \leq 0$). However, it can be seen that the BSKR metric fails to be $C^3$ on the wormhole throat at $r=0$. We prove that if the matching were done in such a way that the resulting spacetime metric, Dirac field, and Maxwell field composed a solution to the EDM equations in a neighborhood of $r=0$, then all of the fields would be smooth at $r=0$ in a suitable gauge. Thus, the BSKR wormholes cannot be solutions to the EDM equations. The failure of the BSKR wormholes to solve the EDM equations arises both from the failure of the Maxwell field to satisfy the required matching conditions (which implies the presence of an additional shell of charged matter at $r=0$) and, more significantly, from the failure of the Dirac field to satisfy required matching conditions (which implies the presence of a spurious source term for the Dirac field at $r=0$.
description: 12 pages, no figures
Early childhood : special education
Creators: name: McKenzie, Patricia Jay
Publisher: name: University of British Columbia
Year: 2010

description: This study examines the growth and development of a program for the preparation of special education teachers in Early Childhood Education, Following an overview of historical perspectives in Early Childhood and Special Education, including international influences, models which would aid in the development of such a program are discussed. The Provincial Child Care Facilities Licensing Board and the Ministry of Education, of British Columbia expressed a wish for the development of post-basic special education programs in Early Childhood Education and their willingness to fund several programs in the province. Their critieria and support is included in a description of the development, implementation and evaluation of the Early Childhood: Special Education Program at Vancouver Community College? Langara Campus. The purpose of this study is, therefore, to provide information on the development of such a program and to examine the needs and possible future directions of teacher preparation in special education for Early Childhood Education.
Additional file 34 of Interpretation of convolutional neural networks reveals crucial sequence features involving in transcription during fiber development
Creators: name: Liu, Shang
name: Cheng, Hailiang
name: Ashraf, Javaria
name: Zhang, Youping
name: Wang, Qiaolian
name: Lv, Limin
name: He, Man
name: Song, Guoli
name: Zuo, Dongyun
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 34. Title of data: GO enrichment on genes possessed novel motif detected during SCW. Description of data: First ten the most enriched GO terms in biological process, molecular function, cell component, respectively were selected for visualization.
Extended Higgs sectors, effective field theory and Higgs phenomenology
Creators: name: Anisha
name: Banerjee, Upalaparna
name: Chakrabortty, Joydeep
name: Englert, Christoph
name: Spannowsky, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We consider the phenomenological implications of charged scalar extensions of the SM Higgs sector in addition to EFT couplings of this new state to SM matter. We perform a detailed investigation of modifications of loop-induced decays of the 125 GeV Higgs boson, which receives corrections from the propagating charged scalars alongside one-loop EFT operator insertions and demonstrate that the interplay of $H\to γγ$ and $H\to Zγ$ decays can be used to clarify the additional states phenomenology in case a discovery is made in the future. In parallel, EFT interactions of the charged Higgs can lead to a decreased sensitivity to the virtual presence of charged Higgs states, which can significantly weaken the constraints that are naively expected from the precisely measured $H\to γγ$ branching ratio. Again $H\to Zγ$ measurements provide complementary sensitivity that can be exploited in the future.
description: 11 pages, 6 captioned figures, 4 tables
Production of dual species Bose-Einstein condensates of $^{39}$K and $^{87}$Rb
Creators: name: Mi, Cheng-Dong
name: Nawaz, Khan Sadiq
name: Wang, Peng-Jun
name: Chen, Liang-Chao
name: Meng, Zeng-ming
name: Huang, Lianghui
name: Zhang, Jing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report the production of $^{39}$K and $^{87}$Rb Bose-Einstein condensates (BECs) in the lowest hyperfine states $| F=1,m_{F}=1 \rangle$ simultaneously. We collect atoms in bright/dark magneto-optical traps (MOTs) of $^{39}$K/$^{87}$Rb to overcome the light-assisted losses of $^{39}$K atoms. Gray molasses cooling on the D1 line of the $^{39}$K is used to effectively increase the phase density, which improves the loading efficiency of $^{39}$K into the quadrupole magnetic trap. Simultaneously, the normal molasses are employed for $^{87}$Rb. After the microwave evaporation cooling on $^{87}$Rb in the optically plugged magnetic trap, the atoms mixture is transferred to a crossed optical dipole trap, where the collisional properties of the two species in different combinations of the hyperfine states are studied. The dual species BECs of $^{39}$K and $^{87}$Rb are obtained by further evaporative cooling in optical dipole trap at a magnetic field of 372.6 G with the background repulsive interspecies scattering length $a_{KRb}$ = 34 $a_{0}$ ($a_{0}$ is the Bohr radius) and the intraspecies scattering length $a_{K}$ = 20.05 $a_{0}$.
description: 8 pages, 7 figures, Accepted by Chinese Phys. B
The impact of virtual mirroring on customer satisfaction
Creators: name: Gloor, P.
name: Colladon, A. Fronzetti
name: Giacomelli, G.
name: Saran, T.
name: Grippa, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computation and Language (cs.CL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: J.4; I.2.7

description: We investigate the impact of a novel method called "virtual mirroring" to promote employee self-reflection and impact customer satisfaction. The method is based on measuring communication patterns, through social network and semantic analysis, and mirroring them back to the individual. Our goal is to demonstrate that self-reflection can trigger a change in communication behaviors, which lead to increased customer satisfaction. We illustrate and test our approach analyzing e-mails of a large global services company by comparing changes in customer satisfaction associated with team leaders exposed to virtual mirroring (the experimental group). We find an increase in customer satisfaction in the experimental group and a decrease in the control group (team leaders not involved in the virtual mirroring process). With regard to the individual communication indicators, we find that customer satisfaction is higher when employees are more responsive, use a simpler language, are embedded in less centralized communication networks, and show more stable leadership patterns.
Note on equatorial geodesics in circular spacetimes
Creators: name: Van Aelst, Karim
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: General results on equatorial geodesics are exposed in the case of circular spacetimes featuring an equatorial reflection symmetry. The way the geodesic equation equivalently rewrites in terms of an effective potential is explicitly recalled for circular and non-circular equatorial geodesics. This provides a practical tool to discuss their stability. Statements are illustrated in Kerr spacetime.
description: 18 pages, 5 figures, version published in CQG
Spin Valve Effect in Self-exchange Biased Ferromagnetic Metal/Semiconductor Bilayers
Creators: name: Zhu, M.
name: Wilson, M. J.
name: Sheu, B. L.
name: Mitra, P.
name: Schiffer, P.
name: Samarth, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report magnetization and magetoresistance measurements in hybrid ferromagnetic metal/semiconductor heterostructures comprised of MnAs/(Ga,Mn)As bilayers. Our measurements show that the (metallic) MnAs and (semiconducting) (Ga,Mn)As layers are exchange coupled, re- sulting in an exchange biasing of the magnetically softer (Ga,Mn)As layer that weakens with layer thickness. Magnetoresistance measurements in the current-perpendicular-to-the-plane geometry show a spin valve effect in these self-exchange biased bilayers. Similar measurements in MnAs/p- GaAs/(Ga,Mn)As trilayers show that the exchange coupling diminishes with spatial separation between the layers.
title: Classification of Late-Antique Glass: Tandem-LIBS-LA-ICP-MS Analysis and Machine Learning Approach
Creators: name: Umfahrer, Barbara
Publisher: name: TU Wien
Year: 2023
Subjects: subject: LIBS
subject: LA-ICP-MS
subject: Late-Antique Glass
subject: classification

description: Elemental analysis of a material reveals its characteristic chemical fingerprint, aiding in identifying the provenance of the raw materials and providing insights into historical trading routes. In the field of Archaeological Science, Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) is commonly used to analyze historical glass. This work aims to explore the advantages of incorporating Laser-Induced Breakdown Spectroscopy (LIBS) into the measurement setup, using Tandem-LIBS-LA-ICP-MS. The primary goal of this thesis is to develop a measurement methodology using the Tandem-LIBS-LA-ICP-MS configuration to generate high-quality data. This data will, in turn, be employed for the classification of the provided glass samples, utilizing a reference dataset that contains elemental analysis data derived from late-antique glasses as documented in existing literature.Overall 46 late-antique glass samples, excavated at Hemmaberg, Austria, were analyzed and quantified using Tandem-LIBS-LA-ICP-MS and the reference materials NIST® SRM® 610 and NIST® SRM® 612. Solid measurements were validated against acid-digested samples, measured using conventional liquid ICP-OES and -MS. Moreover, a OneClass Support Vector Machine (OCSVM) was employed to determine novel glass types within the analyzed samples. Also, a k-nearest neighbor (k-NN)-model was trained to determine the provenance and assign the samples to glass types documented in the literature.Solid measurements in general are minimal-invasive and sample preparation is less laborious. When it comes to quantification, the sum normalization method improved the results for two key elements when employing LIBS. This, in turn, enables the liberation of acquisition time in LA-ICP-MS, allowing for more precise measurements of other elements. Novelties could be detected and successful classification using k-NN was achieved using the samples’ base compositions, assessable through LIBS data exclusively. The use of Recycling Markers, measured via LA-ICP-MS, allowed for the identification of recycled glass.In the future, through the selection of more suitable reference materials and refining trace marker identification for sensitive LIBS measurements, it becomes feasible to eliminate the necessity of LA-ICP-MS within in the measurement setup. Such advancements could lead to LIBS-only measurements, potentially enabling handheld applications, greatly benefiting archaeologists in the field for rapid and on-site glass analysis.
The Logarithmic Contributions to the Polarized and Operator Matrix Elements in Deeply Inelastic Scattering
Creators: name: Blümlein, J.
name: De Freitas, A.
name: Saragnese, M.
name: Schneider, C.
name: Schönwald, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the logarithmic contributions to the polarized massive Wilson coefficients for deep-inelastic scattering in the asymptotic region $Q^2 \gg m^2$ to 3-loop order in the fixed-flavor number scheme and present the corresponding expressions for the polarized massive operator matrix elements needed in the variable flavor number scheme. The calculation is performed in the Larin scheme. For the massive operator matrix elements $A_{qq,Q}^{(3),\rm PS}$ and $A_{qg,Q}^{(3),\rm S}$ the complete results are presented. The expressions are given in Mellin-$N$ space and in momentum fraction $z$-space.
description: 86 pages Latex
Compliance Requirements in Large-Scale Software Development: An Industrial Case Study
Creators: name: Usman, Muhammad
name: Felderer, Michael
name: Unterkalmsteiner, Michael
name: Klotins, Eriks
name: Mendez, Daniel
name: Alegroth, Emil
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Regulatory compliance is a well-studied area, including research on how to model, check, analyse, enact, and verify compliance of software. However, while the theoretical body of knowledge is vast, empirical evidence on challenges with regulatory compliance, as faced by industrial practitioners particularly in the Software Engineering domain, is still lacking. In this paper, we report on an industrial case study which aims at providing insights into common practices and challenges with checking and analysing regulatory compliance, and we discuss our insights in direct relation to the state of reported evidence. Our study is performed at Ericsson AB, a large telecommunications company, which must comply to both locally and internationally governing regulatory entities and standards such as GDPR. The main contributions of this work are empirical evidence on challenges experienced by Ericsson that complement the existing body of knowledge on regulatory compliance.
description: Full research paper accepted at International Conference on Product-Focused Software Process Improvement 2020
Dark Matter in Gauge Mediation from Emergent Supersymmetry
Creators: name: Ng, Siew-Phang
name: Okada, Nobuchika
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigated the viability of neutralino dark matter in the gauge mediation from emergent supersymmetry proposal. In this proposal, supersymmetry is broken at Planck scale and consequently, the gravitino is superheavy and completely decouples from the low energy theory. Squarks and sleptons obtain their soft masses dominantly through gauge mediation with other mechanisms highly suppressed. The lightest supersymmetric partner, in contrast to traditional gauge mediation, is a neutralino which is also a dark matter candidate. By explicit calculation of the low energy spectra, the parameter space was constrained using the WMAP observed relic density of dark matter, LEP2 Higgs mass bounds, collider bounds on supersymmetric partners and exotic B-meson decays. We found that the model has intriguing hybrid features such as a nearly gauge-mediated spectrum (the exception being the superheavy gravitino) but with a dominant mSUGRA-like bino-stau coannihilation channel and at large $\tan β$, A-resonance-like annihilation.
description: 14 pages, 4 figures
La perception de la présence sociale en contexte de formation à distance et son impact sur la satisfaction
Creators: name: Abaakil Samir
Publisher: name: Zenodo
Year: 2021
Subjects: Social presence, Overall satisfaction, community of inquiry ,online learning

description: The object of this work lies in the conduct of a specific study, respectful of the online learning framework (community of inquiry), on the impact and consequently the incidence, in terms of dependency relationship, that could have the social presence variable, with its modalities, on the overall satisfaction that learners could derive from an online training situation

Indeed, it remains undeniable that learner satisfaction is an essential factor to study in online learning contexts because it is presented as an indicator of the quality of the course and the success of the course. In addition, it could have a multifaceted impact on teachers, on the educational system in general as well as on learners on their chances of success in online courses.

This study showed that social presence plays a role in predicting learner satisfaction in an online program. Promoting such presences in online programs could fulfill the promise of improving learner satisfaction.

L’objet de ce travail réside dans la conduite d’une étude spécifique, respectueuse du cadre d’apprentissage en ligne , sur l’impact et par suite l’incidence , en termes de relation de dépendance , que pourrait avoir la variable présence sociale, avec ses modalités , sur la satisfaction globale que pourraient retirer les apprenants en situation de formation en ligne.

En effet, il reste indéniable que la satisfaction des apprenants  soit  un facteur essentiel à étudier dans les contextes d’apprentissage en ligne , et ce, du fait qu’ elle se présente comme un indicateur de la qualité du cours et de la réussite de l’expérience d’apprentissage globale ; en outre , elle  pourrait avoir une incidence  multiforme aussi bien sur les enseignants , sur le système pédagogique  en général que sur  les apprenants sur leurs  chances  de réussites dans les cours en ligne.

Cette étude a montré que la présence sociale joue un rôle dans la prédiction de la satisfaction des apprenants dans un programme en ligne. Autrement dit, favoriser ces présences dans les programmes en ligne,  pourrait remplir la promesse d’améliorer la satisfaction des apprenants.