cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Frequency Centric Defense Mechanisms against Adversarial Examples
Creators: name: Shah, Sanket B.
name: Raval, Param
name: Khakhi, Harin
name: Raval, Mehul S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Adversarial example (AE) aims at fooling a Convolution Neural Network by introducing small perturbations in the input image.The proposed work uses the magnitude and phase of the Fourier Spectrum and the entropy of the image to defend against AE. We demonstrate the defense in two ways: by training an adversarial detector and denoising the adversarial effect. Experiments were conducted on the low-resolution CIFAR-10 and high-resolution ImageNet datasets. The adversarial detector has 99% accuracy for FGSM and PGD attacks on the CIFAR-10 dataset. However, the detection accuracy falls to 50% for sophisticated DeepFool and Carlini & Wagner attacks on ImageNet. We overcome the limitation by using autoencoder and show that 70% of AEs are correctly classified after denoising.
description: AdvM '21: Proceedings of the 1st International Workshop on Adversarial Learning for Multimedia, at ACM Multimedia '21
Reweighting towards the chiral limit
Creators: name: Hasenfratz, Anna
name: Hoffmann, Roland
name: Schaefer, Stefan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We propose to perform fully dynamical simulations at small quark masses by reweighting in the quark mass. This approach avoids some of the technical difficulties associated with direct simulations at very small quark masses. We calculate the weight factors stochastically, using determinant breakup and low mode projection to reduce the statistical fluctuations. We find that the weight factors fluctuate only moderately on nHYP smeared dynamical Wilson-clover ensembles, and we could successfully reweight 16^4, (1.85fm)^4 volume configurations from m_q = 20MeV to m_q = 5MeV quark masses, reaching the epsilon-regime. We illustrate the strength of the method by calculating the low energy constant F from the epsilon-regime pseudo-scalar correlator.
description: 17 pages, 8 figures
Correction: Family and parenting factors are associated with emotion regulation neural function in early adolescent girls with elevated internalizing symptoms
Creators: name: Lin, Sylvia C.
name: Zhao, Junxuan
name: Pozzi, Elena
name: Havighurst, Sophie
name: Telzer, Eva H.
name: Kehoe, Christiane E.
name: Schwartz, Orli S.
name: Yap, Marie B. H.
name: Whittle, Sarah
Publisher: name: Springer Nature
Year: 2025

description:
Correction to: "Family and parenting factors are associated with emotion regulation neural function in early adolescent girls with elevated internalizing symptoms"
Charged particle dynamics in the vicinity of black hole from vector-tensor theory of gravity immersed in an external magnetic field
Creators: name: Nazar, Azeem
name: Hussain, Saqib
name: Aslam, Adnan
name: Hussain, Takasar
name: Ozair, Muhammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The dynamics of charged particle in the vicinity of event horizon of a rotating charged black hole (BH) with gravitomagnetic charge from a class of vector-tensor theories of modified gravity immersed in an axially symmetric magnetic field (Bfield) has been studied. The presence of Bfield reduces the radii of innermost stable circular orbit (ISCO) of charged particle and the opposite phenomenon occurs due the parameter $β$ which describes the deviation of modified gravity considered here from the usual Einstein - Maxwell gravity also acts to increase the radius of ISCO. Angular momentum also plays the role regarding the motion of particle which implies that larger the angular momentum easier for a particle to escape. We study the stability of orbits using Lyapunov characteristic exponent which implies more stability in the presence of Bfield. Generally, in the presence of Bfield it is easier for a particle to escape than its absence. We find twist in the trajectories of charged particles close to event horizon due to spin of BH in the presence of Bfield and there is no twist in the absence of it. Finally, we comment on possible utilization of our findings for the relativistic jets and magnetohydrodynamical out flows.
description: 10 pages
Understanding Relations Between Perception of Fairness and Trust in Algorithmic Decision Making
Creators: name: Zhou, Jianlong
name: Verma, Sunny
name: Mittal, Mudit
name: Chen, Fang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Algorithmic processes are increasingly employed to perform managerial decision making, especially after the tremendous success in Artificial Intelligence (AI). This paradigm shift is occurring because these sophisticated AI techniques are guaranteeing the optimality of performance metrics. However, this adoption is currently under scrutiny due to various concerns such as fairness, and how does the fairness of an AI algorithm affects user's trust is much legitimate to pursue. In this regard, we aim to understand the relationship between induced algorithmic fairness and its perception in humans. In particular, we are interested in whether these two are positively correlated and reflect substantive fairness. Furthermore, we also study how does induced algorithmic fairness affects user trust in algorithmic decision making. To understand this, we perform a user study to simulate candidate shortlisting by introduced (manipulating mathematical) fairness in a human resource recruitment setting. Our experimental results demonstrate that different levels of introduced fairness are positively related to human perception of fairness, and simultaneously it is also positively related to user trust in algorithmic decision making. Interestingly, we also found that users are more sensitive to the higher levels of introduced fairness than the lower levels of introduced fairness. Besides, we summarize the theoretical and practical implications of this research with a discussion on perception of fairness.
Quantitative Evaluation of Decoherence and Applications for Quantum-Dot Charge Qubits
Creators: name: Fedichkin, L.
name: Privman, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review results on evaluation of loss of information in quantum registers due to their interactions with the environment. It is demonstrated that an optimal measure of the level of quantum noise effects can be introduced via the maximal absolute eigenvalue norm of deviation of the density matrix of a quantum register from that of ideal, noiseless dynamics. For a semiconductor quantum dot charge qubits interacting with acoustic phonons, explicit expressions for this measure are derived. For a broad class of environmental modes, this measure is shown to have the property that for small levels of quantum noise it is additive and scales linearly with the size of the quantum register.
A Kpc Scale Molecular Wave in the Inner Galaxy: Feather of the Milky Way?
Creators: name: Veena, V. S.
name: Schilke, P.
name: Sánchez-Monge, Á.
name: Sormani, M. C.
name: Klessen, R. S.
name: Schuller, F.
name: Colombo, D.
name: Csengeri, T.
name: Mattern, M.
name: Urquhart, J. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of a velocity coherent, kpc-scale molecular structure towards the Galactic center region with an angular extent of 30deg and an aspect ratio of 60:1. The kinematic distance of the CO structure ranges between 4.4 to 6.5 kpc. Analysis of the velocity data and comparison with the existing spiral arm models support that a major portion of this structure is either a sub-branch of the Norma arm or an inter-arm giant molecular filament, likely to be a kpc-scale feather (or spur) of the Milky Way, similar to those observed in nearby spiral galaxies. The filamentary cloud is at least 2.0 kpc in extent, considering the uncertainties in the kinematic distances, and it could be as long as 4 kpc. The vertical distribution of this highly elongated structure reveals a pattern similar to that of a sinusoidal wave. The exact mechanisms responsible for the origin of such a kpc-scale filament and its wavy morphology remains unclear. The distinct wave-like shape and its peculiar orientation makes this cloud, named as the Gangotri wave, one of the largest and most intriguing structures identified in the Milky Way.
description: 10 pages, 7 figures, accepted for publication in ApJ Letters
Video or Image Transmission Security for ESP-EYE IoT device used in Business Processes
Creators: name: Aydin, Omer
name: Erhan, Ibrahim Ismail
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Internet of Things is the name of a communication network that is formed by physical objects such as RFID tags, sensors and some lightweight development platforms that have the ability to connect to the internet. While the devices can communicate among themselves in this network, they can also be part of a large network. The data produced by those physical objects which are the member of IoT network are processed by different methods and the outputs obtained are used in processes such as decision making and learning. With this aspect of the Internet of Things, it affects all areas of human life and its number is increasing day by day. These devices appear to have security gaps due to their limited resources, their wide range of usage area and incomplete security standards. These devices, which are located in people's living areas, manufacturing and business processes also cause difficulties in protecting privacy. In this study, a solution has been developed for the communication security of the internet of things called ESP-Eye which includes a camera, wireless communication module and face recognition software. The proposed solution was implemented on the ESP-Eye.
Pigeons’ memory for event duration
Creators: name: Spetch, Marcia Louise
Publisher: name: University of British Columbia
Year: 2010

description: Pigeon's working memory for event duration was investigated using variations of the delayed matching to sample procedure. When a retention interval of variable length was interposed between the sample and comparison stimuli, pigeons responded as though a long-duration sample had been short after retention intervals of 10 sec or greater. This "choose short" effect occurred reliably in each subject, regardless of whether the subject was naive or experienced, whether the sample durations were represented by food-access or light, or whether a two- or three-choice procedure was used. In order to account for these findings, a "subjective shortening" model of memory for event duration was proposed. According to the model, the choose short effect is produced by a discrepancy between a relatively static reference memory of the sample durations and a dynamic working memory of the sample durations that "shortens" over the retention interval. This discrepancy produces the tendency to respond as though the long sample was short, A number of predictions, derived from the subjective shortening model, were confirmed in subsequent experiments. First, after a long retention interval, the point of subjective equality between the short and long samples shifted to a longer duration. Second, stepwise increases in the retention interval produced a temporary choose short effect, whereas stepwise decreases in the retention interval produced a temporary choose long effect. Third, with extended training at a given retention interval, the choose short and choose long effects diminished and overall accuracy improved. These results provided strong support for the subjective shortening model, whereas they could not be interpreted readily within the context of other conceptualizations of working memory processes.
THEORETICAL APPROACHES TO THE STUDY OF TOLERANCE IN CONTEMPORARY RELIGIOUS-PSYCHOLOGICAL RESEARCH
Creators: name: Kholmatov Mansur Abdirakhim  ugli Alfraganus university
Publisher: name: Zenodo
Year: 2023

description: This article discusses the theoretical and methodological analysis of the concept of religious tolerance. Also, various psychological and religious approaches to the phenomenon of religious tolerance have been comparatively analyzed.

Key words: religion, tolerance, religious tolerance, psychological character, trust, approach
Exclusive semileptonic decays of $Λ_b \to Λl^{+} l^{-}$ in supersymmetric theories
Creators: name: Aslam, M. Jamil
name: Wang, Yu-Ming
name: Lu, Cai-Dian
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The weak decays of $Λ_b \to Λl^{+} l^{-}$ ($l=e, μ$) are investigated in Minimal Supersymmetric Standard Model (MSSM) and also in Supersymmetric (SUSY) SO(10) Grand Unified Models. In MSSM the special attention is paid to the Neutral Higgs Bosons (NHBs) as they make quite a large contribution in exclusive $B \to X_{s} l^{+} l^{-}$ decays at large $\tanβ$ regions of parameter space of SUSY models, since part of SUSY contributions is proportional to $\tan^{3}β$. The analysis of decay rate, forward-backward asymmetries, lepton polarization asymmetries and the polarization asymmetries of $Λ$ baryon in $Λ_b \to Λl^{+} l^{-}$ show that the values of these physical observables are greatly modified by the effects of NHBs. In SUSY SO(10) GUT model, the new physics contribution comes from the operators which are induced by the NHBs penguins and also from the operators having chirality opposite to that of the corresponding SM operators. SUSY SO(10) effects show up only in the decay $Λ_b \to Λ+τ^{+} τ^{-}$ where the longitudinal and transverse lepton polarization asymmetries are deviate significantly from the SM value while the effects in the decay rate, forward-backward asymmetries and polarization asymmetries of final state $Λ$ baryon are very mild. The transverse lepton polarization asymmetry in $Λ_b \to Λ+τ^{+} τ^{-}$ is almost zero in SM and in MSSM model. However, it can reach to -0.1 in SUSY SO(10) GUT model and could be seen at the future colliders; hence this asymmetry observable will provide us useful information to probe new physics and discriminate between different models.
description: 26 pages, 8 figures
Rapid IoT Device Identification at the Edge
Creators: name: Thompson, Oliver
name: Mandalari, Anna Maria
name: Haddadi, Hamed
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Consumer Internet of Things (IoT) devices are increasingly common in everyday homes, from smart speakers to security cameras. Along with their benefits come potential privacy and security threats. To limit these threats we must implement solutions to filter IoT traffic at the edge. To this end the identification of the IoT device is the first natural step. In this paper we demonstrate a novel method of rapid IoT device identification that uses neural networks trained on device DNS traffic that can be captured from a DNS server on the local network. The method identifies devices by fitting a model to the first seconds of DNS second-level-domain traffic following their first connection. Since security and privacy threat detection often operate at a device specific level, rapid identification allows these strategies to be implemented immediately. Through a total of 51,000 rigorous automated experiments, we classify 30 consumer IoT devices from 27 different manufacturers with 82% and 93% accuracy for product type and device manufacturers respectively.
Defining characteristics of a new elementary science curriculum : variance among developers, teachers and practices in classrooms
Creators: name: Chakagondua, Jimmy Godwill
Publisher: name: University of British Columbia
Year: 2010

description: New elementary science programmes have often been noticed to fail at the stage of implementation. It was hypothesized that part of such failures stemmed from discrepancies which existed between the developers and teachers in their perceptions of the new programmes. The purpose of this study was to determine the developers' and teachers' perceptions of a new elementary science programme; to examine agreements and disagreements in their perceptions; and to determine any congruencies or discrepancies between their perceptions and actual classroom practices. The above was done by determining the viewpoints of the developers and teachers in terms of what they perceived the defining characteristics of the new and established programmes to be. These viewpoints were determined and examined for agreements and disagreements through the various Q-techniques. The second part of the study utilized a classroom analysis instrument derived from the respondents' viewpoints that were congruent with the initial description of the programmes. The results of the study showed that there were no distinctive developers' or teachers' viewpoints, but that most of the respondents had similar viewpoints concerning the new programme. A small group of teacher-users held a distinctive viewpoint of the established programme, while the other viewpoints of the programme were vague. The classroom data analysis revealed that the new programme showed a higher congruency between perceptions and performances than did the established programme. A few teachers were classified as non-implementers because they displayed an equal and insufficient number of distinctive characteristics for both programmes. Some of the possible factors which influenced teachers' perceptions or performances included administrative support of the new programme, the teachers' experiences with the established programme, inadequate teacher preparation for implementation and lack of clarification of the role of the new programme in elementary science in that school district.
Constraint optimization and landscapes
Creators: name: Krzakala, Florent
name: Kurchan, Jorge
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Complexity (cs.CC)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We describe an effective landscape introduced in [1] for the analysis of Constraint Satisfaction problems, such as Sphere Packing, K-SAT and Graph Coloring. This geometric construction reexpresses these problems in the more familiar terms of optimization in rugged energy landscapes. In particular, it allows one to understand the puzzling fact that unsophisticated programs are successful well beyond what was considered to be the `hard' transition, and suggests an algorithm defining a new, higher, easy-hard frontier.
description: Contribution to STATPHYS23
Final-state interactions in the decays $B^0\toχ_{c0}K^{*0}$ and $B^+ \to χ_{c0}K^{*+}$
Creators: name: Wang, Zhi-Gang
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article, we study the final-state rescattering effects in the decays $B^0\to χ_{c0}K^{*0}$ and $B^+ \to χ_{c0}K^{*+}$, and observe the corrections are zero in the SU(3) limit, which is warranted by the heavy quark symmetry. It is difficult to accommodate the experimental data without fine-tuning.
description: 8 pages, 1 figure, revised version
title: Plastikatlas
title: Daten und Fakten über eine Welt voller Kunststoff 2019
titleType: Subtitle
Creators: name: Fuhr, Lili
name: Buschmann, Dr. Rolf
name: Freund, Judith
Publisher: name: Heinrich-Böll-Stiftung e.V. in Zusammenarbeit mit dem Bund für Umwelt und Naturschutz Deutschland (BUND)
Year: 2019

description: Plastik ist allgegenwärtig: Wir nutzen es für lebensrettende medizinische Geräte, für Kleidung, Spielzeug und Kosmetik; wir verwenden es in Landwirtschaft und Industrie. Aber wir wissen auch, welch wachsendes Risiko Plastikmüll in der Umwelt, auf Deponien und in den Weltmeeren darstellt. Ein Beispiel: Die Plastikmenge, die manch Eissturmvogel während seines Lebens im Magen ansammelt, entspricht 31 Gramm beim Menschen – das wäre ein Teller voll. Doch obwohl das Bewusstsein für die negativen Folgen von Plastik wächst, erleben wir einen ungebrochenen Boom bei der Plastikproduktion. Dabei werden 99 Prozent des Plastiks aus fossilen Brennstoffen hergestellt; die betreffenden klimaschädlichen Emissionen sind enorm. Und nur neun Prozent des gesamten weggeworfenen Kunststoffs seit 1950 wurden recycelt; stattdessen landen täglich riesige Mengen unseres Plastikmülls auf Halden in Ländern Asiens. Wir haben gerade erst begonnen, die gewaltigen Dimensionen dieser Krise zu begreifen. Für ein Umsteuern braucht es fundiertes Wissen über die Ursachen, die Interessen, die Verantwortlichen sowie die Auswirkungen der Plastikkrise. Der Plastikatlas 2019 will genau in 19 Kapiteln das bieten. Er erscheint am 6. Juni in Zusammenarbeit von Heinrich-Böll-Stiftung und BUND.
Processed Splitting Algorithms for Rigid-Body Molecular Dynamics Simulations
Creators: name: Omelyan, Igor P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A new approach for integration of motion in many-body systems of interacting polyatomic molecules is proposed. It is based on splitting time propagation of pseudo-variables in a modified phase space, while the real translational and orientational coordinates are decoded by processing transformations. This allows to overcome the barrier on the order of precision of the integration at a given number of force-torque evaluations per time step. Testing in dynamics of water versus previous methods shows that the obtained algorithms significantly improve the accuracy of the simulations without extra computational costs.
description: 6 pages, 2 figures, submitted to Physical Review E
A framework for optimal quantum spatial search using alternating phase-walks
Creators: name: Marsh, S.
name: Wang, J. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a novel methodological framework for quantum spatial search, generalising the Childs & Goldstone ($\mathcal{CG}$) algorithm via alternating applications of marked-vertex phase shifts and continuous-time quantum walks. We determine closed form expressions for the optimal walk time and phase shift parameters for periodic graphs. These parameters are chosen to rotate the system about subsets of the graph Laplacian eigenstates, amplifying the probability of measuring the marked vertex. The state evolution is asymptotically optimal for any class of periodic graphs having a fixed number of unique eigenvalues. We demonstrate the effectiveness of the algorithm by applying it to obtain $\mathcal{O}(\sqrt{N})$ search on a variety of graphs. One important class is the $n \times n^3$ rook graph, which has $N=n^4$ vertices. On this class of graphs the $\mathcal{CG}$ algorithm performs suboptimally, achieving only $\mathcal{O}(N^{-1/8})$ overlap after time $\mathcal{O}(N^{5/8})$. Using the new alternating phase-walk framework, we show that $\mathcal{O}(1)$ overlap is obtained in $\mathcal{O}(\sqrt{N})$ phase-walk iterations.
Situation et représentation dans l'œuvre de François Bon
Creators: name: Schöch, Christof
Publisher: name: Zenodo
Year: 2014
Subjects: French Literature
Contemporary Fiction
François Bon
Calvaire des Chiens
Temps machine
Paysage fer
Novel

description: Né en 1953, François Bon publie son premier livre, Sortie d'usine, en 1982. Étudier ses textes, c'est se consacrer à une œuvre qui donne une place éminente à une nouvelle confrontation avec le réel. Sans oublier « l'ère du soupçon » qu'a représenté le nouveau roman ni l'apport immense des « années théoriques », ses textes ne cessent de renouveler la manière dont la littérature réinvestit l'écart qui existe entre le réel et sa représentation, entre le monde et la langue, en assumant la rupture qui les sépare, mais sans conclure à l'impossibilité totale de nouer des liens, de construire des ponts, fussent-ils secrets ou fragiles. Les trois textes qui font l'objet de ce travail, Calvaire des chiens (1990), Temps machine (1993) et Paysage fer (1999), ont été choisis parce qu'ils constituent autant de manières dont la littérature peut aujourd'hui construire le rapport entre le réel et sa représentation et parce qu'ils sont des jalons majeurs dans l'œuvre de François Bon.
MOTIVE OF CHILDREN'S SUFFERING IN THE STORY Z. PRILEPIN "WHITE SQUARE"
Creators: name: Mavlyanova Leylo 1st Year Student Of The Faculty Of Russian Language And Literature Jizzakh State Pedagogical
name: University Named After A. Kadyri, Uzbekistan Scientific Supervisor: Isaeva Yuliya Pavlovna
Publisher: name: Zenodo
Year: 2023

description: The article is devoted to the motive of childhood suffering in Z. Prilepin’s story “White Square”. Z. Prilepin, using contemporary material, raises the topic of childhood suffering in the world, thinking about timeless questions of existence.

Key words: Prilepin, “Sin”, “White Square”, Zakharka, Sasha, memory, nostalgia, childhood, symbol, image of a child, motive of childhood suffering
Vacuum laser acceleration of super-ponderomotive electrons using relativistic transparency injection
Creators: name: Singh, P. K.
name: Li, F. -Y.
name: Huang, C. -K.
name: Moreau, A.
name: Hollinger, R.
name: Junghans, A.
name: Favalli, A.
name: Calvi, C.
name: Wang, S.
name: Wang, Y.
name: Song, H.
name: Rocca, J. J.
name: Reinovsky, B.
name: Palaniyappan, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Intense lasers can accelerate electrons to very high energy over a short distance. Such compact accelerators have several potential applications including fast ignition, high energy physics, and radiography. Among the various schemes of laser-based electron acceleration, vacuum laser acceleration has the merits of super-high acceleration gradient and great simplicity. Yet its realization has been difficult because injecting free electrons into the fast-oscillating laser field is not trivial. Here we demonstrate free-electron injection and subsequent vacuum laser acceleration of electrons up to 20 MeV using the relativistic transparency effect. When a high-contrast intense laser drives a thin solid foil, electrons from the dense opaque plasma are first accelerated to near-light speed by the standing laser wave in front of the solid foil and subsequently injected into the transmitted laser field as the opaque plasma becomes relativistically transparent. It is possible to further optimize the electron injection/acceleration by manipulating the laser polarization, incident angle, and temporal pulse shaping. Our result also sheds new light on the fundamental relativistic transparency process, crucial for producing secondary particle and light sources.
description: 18 pages, 7 figures
Precise distances from OGLE-IV member RR Lyrae stars in six bulge globular clusters
Creators: name: Oliveira, R. A. P.
name: Ortolani, S.
name: Barbuy, B.
name: Kerber, L. O.
name: Maia, F. F. S.
name: Bica, E.
name: Cassisi, S.
name: Souza, S. O.
name: Pérez-Villegas, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. RR Lyrae stars are useful standard candles allowing one to derive accurate distances for old star clusters. Based on the recent catalogues from OGLE-IV and Gaia Early Data Release 3 (EDR3), the distances can be improved for a few bulge globular clusters. Aims. The aim of this work is to derive an accurate distance for the following six moderately metal-poor, relatively high-reddening bulge globular clusters: NGC 6266, NGC 6441, NGC 6626, NGC 6638, NGC 6642, and NGC 6717. Methods. We combined newly available OGLE-IV catalogues of variable stars containing mean I magnitudes, with Clement's previous catalogues containing mean V magnitudes, and with precise proper motions from Gaia EDR3. Astrometric membership probabilities were computed for each RR Lyrae, in order to select those compatible with the cluster proper motions. Applying luminosity-metallicity relations derived from BaSTI $α$-enhanced models (He-enhanced for NGC 6441 and canonical He for the other clusters), we updated the distances with relatively low uncertainties. Results. Distances were derived with the I and V bands, with a $5-8\%$ precision. We obtained 6.6 kpc, 13.1 kpc, 5.6 kpc, 9.6 kpc, 8.2 kpc, and 7.3 kpc for NGC 6266, NGC 6441, NGC 6626, NGC 6638, NGC 6642, and NGC 6717, respectively. The results are in excellent agreement with the literature for all sample clusters, considering the uncertainties. Conclusions. The present method of distance derivation, based on recent data of member RR Lyrae stars, updated BaSTI models, and robust statistical methods, proved to be consistent. A larger sample of clusters will be investigated in a future work.
description: 11 pages, 7 figures. Accepted for publication in A&A
Industrial adaptation and validation of appropriate technologies to improve Cinnamon (Cinnamomum zeylanicum) quill processing
Creators: name: K M T S Bandara
name: K.D.N Weerasinghe
name: L.A Lahiru Sampath
name: A.L.K Chathuranga
name: K.G.G Wijesinghe
Publisher: name: figshare
Year: 2021
Subjects: subject: 99901 Agricultural Engineering
subject: FOS: Other engineering and technologies

description: Abstract
 True cinnamon or Sri Lankan cinnamon is scientifically known as (Cinnamomum zeylanicum). Scarcity of skilled labor and higher cost of cinnamon quill processing sector are the main problems encountered on productivity improvement of cinnamon quill processing sector. Hence, technology inventions and innovations in cinnamon processing are very important. Main objectives of the present research is the commissioning and validation of the prototype of newly modified RUWEEKA - PG rubbing machine, with the industry collaboration, and adaptability experimentation of cinnamon sticks freezing technology for bark detachment without compromising to quality parameters of the bark. Cinnamon sticks with different diameter classes were processed using rubbing machine which have been produced with poly cam mechanism to facilitate the stick insertion. Traditional processing system was also compared with machine rubbing. Freezing experiment was conducted by selecting sticks at mature, over mature and flushing stages. All types of sticks were frozen with and without scraping and manual rubbing were conducted as control. Modified RUWEEKA-PG machine has displayed 54.1% of rubbing time efficiency than manual rubbing during peelable season and 56.02% of efficiency during unpeelable season. Mean inserting time of sticks on rubbing machine with poly cam was 2 seconds for all diameter
 classes. Efficiency of the rubbing process during the unpeelable time could be accelerated by 2.27 times, when modified RUWEEKA-PG machine is used for rubbing process. Freezing of cinnamon sticks without scrapping had a time saving of 255.78 seconds which is 53.26 % of efficiency increment for total bark removing process. It was also established that there is no significant difference in moisture (P - 0.4787) and oil content (P- 0.1364) in frozen cinnamon bark compared to the non-frozen. However the economy of the process in terms of energy consumption has to be checked to provide firm conclusion on freezing process.
A Royal Charter Is Not Enough – How PM Professional Associations Can Continually Show the Value of Professionalisation to the Markets
Creators: name: Wang, Kun
name: Stewart, Ian
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: The Association for Project Management (APM) is engaged in the process of raising the status and performance of Project Management (PM) in the UK. They have obtained a royal charter, regarded as the “locus of professionalisation”, but can the APM really assist PM to achieve “a world where all projects succeed”, when there is no provable link between professionalisation and performance of practitioners? This current claim alone (along with chartership) will not improve the profession’s market reputation, which also raises concerns regarding the APM tactics for growth by engaging practitioners and corporate partners. This article uses actor-network theory to re-frame a historical case of the major UK Cost Accounting Association (ICWA), identifying the tactics this association used to effectively represent the value of the occupation/profession and influence their markets. Parallels and recommendations are generated for the APM, research directions are proposed for PM professionalisation and associations’ tactics for building market value.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Italian Teachers: A Profession in Transition?
Creators: name: Bronzini, Micol
name: Spina, Elena
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: The teaching profession, like many others, is involved in a deep process of change. The sources of pressure are manifold: top-down, as a consequence of neo-liberalist policies and of the implementation of the logic of New Public Management and, later, of New Public Governance; bottom-up, as a result of the socio-demographic and cultural changes affecting the relationship with end-users. All of these elements are challenging teachers’ professionalism. The article questions whether teaching in Italy is currently a profession in transition and, if so, which new features are emerging. To do so, we present a locally-based case study that draws on both Hargreaves’s and Noordegraaf’s theoretical frameworks.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
X-ray photons from late-decaying majoron dark matter
Creators: name: Bazzocchi, Federica
name: Lattanzi, Massimiliano
name: Riemer-Sorensen, Signe
name: Valle, Jose W. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An attractive way to generate neutrino masses as required to account for current neutrino oscillation data involves the spontaneous breaking of lepton number. The resulting majoron may pick up a mass due to gravity. If its mass lies in the kilovolt scale, the majoron can play the role of late-decaying Dark Matter (LDDM), decaying mainly to neutrinos. In general the majoron has also a sub-dominant decay to two photons leading to a mono-energetic emission line which can be used as a test of the LDDM scenario. We compare expected photon emission rates with observations in order to obtain model independent restrictions on the relevant parameters. We also illustrate the resulting sensitivities within an explicit seesaw realisation, where the majoron couples to photons due to the presence of a Higgs triplet.
description: 16 pages, 6 figures. References added. Comments added in Sec. 5. Matches version accepted for publication in JCAP
Torn Between Neoliberal and Postmodern Trends, Corporatist Defence and Creative Age Prospects: The Ongoing Reshaping of the Classical Music Profession in Italy
Creators: name: Casula, Clementina
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: In modern industrial societies, strongly associating work to tangible productivity and professions to formal regulation and protection of membership, the music occupation has represented a conundrum for theoretical analysis. In post-industrial societies, however, musicians are being recognised a pivotal role in capitalist economies, as part of a creative class sharing working conditions already defining artistic labour markets, but within a significantly changed regulative framework. Drawing on the literature and her field research, the author adopts a neo-institutional perspective to consider the reshaping of the classical music profession in Italy, exploring how collective and individual actors are responding to neo-liberal trends extending market logic to a music world crossed by processes of cultural declassification. Conclusions reflect over the ambiguities created by creative age prospects, in applying principles of economic hierarchisation within the field of musical production, and over the transient nature of professionalisation processes.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Quantifying non-Gaussianity of a quantum state by the negative entropy of quadrature distributions
Creators: name: Park, Jiyong
name: Lee, Jaehak
name: Baek, Kyunghyun
name: Nha, Hyunchul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a non-Gaussianity measure of a multimode quantum state based on the negentropy of quadrature distributions. Our measure satisfies desirable properties as a non-Gaussianity measure, i.e., faithfulness, invariance under Gaussian unitary operations, and monotonicity under Gaussian channels. Furthermore, we find a quantitative relation between our measure and the previously proposed non-Gaussianity measures defined via quantum relative entropy and the quantum Hilbert-Schmidt distance. This allows us to estimate the non-Gaussianity measures readily by homodyne detection, which would otherwise require a full quantum-state tomography.
description: 12 pages, 8 figures, 2 tables, close to published version
Use of Ternary Blends Cementitious Materials to Enhance Fresh and Hardened Properties of Self-compacting Concretes
Creators: name: Gritsada Sua-Iam
name: Natt Makul
Publisher: name: King Mongkut's Univesity of Technology Thonburi
Year: 2013
Subjects: Limestone powder, Rice husk ash, Self-compacting concrete, Ternary of blends cementitions materials

description: 1, 36, วารสารวิจัยและพัฒนา มจธ.
Coexistence of CDW with staggered superconductivity in a ferromagnetic material
Creators: name: Georgiou, Marios
name: Varelogiannis, Georgios
name: Thalmeier, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In usual superconductivity (SC), the pairs have zero total momentum irrespective of their symmetry. Staggered SC would involve, instead, pairs with a finite commensurate total momentum, but such exotic states have never been proven to be realized in nature. Here we study for the first time the influence of particle-hole asymmetry on the competition of staggered SC with Charge Density Waves (CDW) in a ferromagnetic medium. We obtain unprecedented situations in which CDW and staggered SC coexist. We also obtain cases of a SC dome near the collapse of a CDW state as well as cascades of transitions that exhibit remarkable similarities with the pressure phase diagram in UGe$_2$ suggesting that SC in this material may be staggered coexisting and competing with a CDW state.
description: added references, epl version
Stochastic Low Frequency Variability in 3-Dimensional Radiation Hydrodynamical Models of Massive Star Envelopes
Creators: name: Schultz, William C.
name: Bildsten, Lars
name: Jiang, Yan-Fei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Increasing main sequence stellar luminosity with stellar mass leads to the eventual dominance of radiation pressure in stellar envelope hydrostatic balance. As the luminosity approaches the Eddington limit, additional instabilities (beyond conventional convection) can occur. These instabilities readily manifest in the outer envelopes of OB stars, where the opacity increase associated with iron yields density and gas pressure inversions in 1D models. Additionally, recent photometric surveys (e.g. TESS) have detected excess broadband low frequency variability in power spectra of OB star lightcurves, called stochastic low frequency variability (SLFV). This motivates our novel 3D Athena++ radiation hydrodynamical (RHD) simulations of two 35$\,$M$_\odot$ star envelopes (the outer $\approx$15$\%$ of the stellar radial extent), one on the zero-age main sequence and the other in the middle of the main sequence. Both models exhibit turbulent motion far above and below the conventional iron opacity peak convection zone (FeCZ), obliterating any ``quiet" part of the near-surface region and leading to velocities at the photosphere of 10-100$\,$km$\,$s$^{-1}$, directly agreeing with spectroscopic data. Surface turbulence also produces SLFV in model lightcurves with amplitudes and power-law slopes that are strikingly similar to those of observed stars. The characteristic frequencies associated with SLFV in our models are comparable to the thermal time in the FeCZ ($\approx$3-7$\,$days$^{-1}$). These simulations, which have no free parameters, are directly validated by observations and, though more models are needed, we remain optimistic that 3D RHD models of main sequence O star envelopes exhibit SLFV originating from the FeCZ.
description: 7 pages, 5 figures
Generalized plane strain embedded in three-dimensional anisotropic elasticity
Creators: name: Lazar, Markus
name: Kirchner, Helmut O. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Physics (physics.class-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The theory of anisotropic generalized plane strain of line forces and dislocation lines is embedded in three-dimensional elasticity of point forces and dislocation densities. Embedding in real space is achieved by slicing in reciprocal space using the projection-slice theorem.
«You’ve Got to Do This like a Professional – Not like One of These Scratchers!». Reconstructing the Professional Self-Understanding of Tattoo Artists
Creators: name: Steckdaub-Muller, Irmgard
Publisher: name: Cambio. Rivista sulle Trasformazioni Sociali
Year: 2019

description: This article investigates the professional self-understanding of tattoo artists, an occupational group that has been expanding rapidly in recent years. Despite ongoing discussions on health and safety risks, tattooing does still not require a recognised licence in most European countries. Tattooists respond to public prejudices concerning their potentially dangerous work practices by referring to their responsibility towards clients and the complexity of their work, which qualify them as professionals. In narrative interviews, tattooists stress that the high standards of artistic quality, craft skills and service orientation, which their customers expect, require their individual professionalisation. Their accounts reveal their notions of professionalism and the rhetorical strategies of boundary work, which they employ to construct their professional identity. The study provides an example of how the practitioners of a non-regulated professional group, whose work has been considered as unskilled and even deviant, adopt and interpret the concept of professionalism to legitimise their status as professionals.
description: Cambio. Rivista sulle Trasformazioni Sociali, Vol. 8 No. 16 (2018): Varieties of Professionalism in a Globalising World: New Theoretical Perspectives and Analytical Approaches
Proactive Retrieval-based Chatbots based on Relevant Knowledge and Goals
Creators: name: Zhu, Yutao
name: Nie, Jian-Yun
name: Zhou, Kun
name: Du, Pan
name: Jiang, Hao
name: Dou, Zhicheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: A proactive dialogue system has the ability to proactively lead the conversation. Different from the general chatbots which only react to the user, proactive dialogue systems can be used to achieve some goals, e.g., to recommend some items to the user. Background knowledge is essential to enable smooth and natural transitions in dialogue. In this paper, we propose a new multi-task learning framework for retrieval-based knowledge-grounded proactive dialogue. To determine the relevant knowledge to be used, we frame knowledge prediction as a complementary task and use explicit signals to supervise its learning. The final response is selected according to the predicted knowledge, the goal to achieve, and the context. Experimental results show that explicit modeling of knowledge prediction and goal selection can greatly improve the final response selection. Our code is available at https://github.com/DaoD/KPN/.
description: Accepted by SIGIR 2021
Non-Markovian entanglement dynamics of quantum continuous variable systems in thermal environments
Creators: name: Liu, Kuan-Liang
name: Goan, Hsi-Sheng
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study two continuous variable systems (or two harmonic oscillators) and investigate their entanglement evolution under the influence of non-Markovian thermal environments. The continuous variable systems could be two modes of electromagnetic fields or two nanomechanical oscillators in the quantum domain. We use quantum open system method to derive the non-Markovian master equations of the reduced density matrix for two different but related models of the continuous variable systems. The two models both consist of two interacting harmonic oscillators. In model A, each of the two oscillators is coupled to its own independent thermal reservoir, while in model B the two oscillators are coupled to a common reservoir. To quantify the degrees of entanglement for the bipartite continuous variable systems in Gaussian states, logarithmic negativity is used. We find that the dynamics of the quantum entanglement is sensitive to the initial states, the oscillator-oscillator interaction, the oscillator-environment interaction and the coupling to a common bath or to different, independent baths.
description: 10 two-column pages, 8 figures, to appear in Phys. Rev. A
Exotic Statistics for Ordinary Particles in Quantum Gravity
Creators: name: Swain, John
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Objects exhibiting statistics other than the familiar Bose and Fermi ones are natural in theories with topologically nontrivial objects including geons, strings, and black holes. It is argued here from several viewpoints that the statistics of ordinary particles with which we are already familiar are likely to be modified due to quantum gravity effects. In particular, such modifications are argued to be present in loop quantum gravity and in any theory which represents spacetime in a fundamentally piecewise-linear fashion. The appearance of unusual statistics may be a generic feature (such as the deformed position-momentum uncertainty relations and the appearance of a fundamental length scale) which are to be expected in any theory of quantum gravity, and which could be testable.
description: Awarded an honourable mention in the 2008 Gravity Research Foundation Essay Competition