cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Active Exploration based on Information Gain by Particle Filter for Efficient Spatial Concept Formation
Creators: name: Taniguchi, Akira
name: Tabuchi, Yoshiki
name: Ishikawa, Tomochika
name: Hafi, Lotfi El
name: Hagiwara, Yoshinobu
name: Taniguchi, Tadahiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Autonomous robots need to learn the categories of various places by exploring their environments and interacting with users. However, preparing training datasets with linguistic instructions from users is time-consuming and labor-intensive. Moreover, effective exploration is essential for appropriate concept formation and rapid environmental coverage. To address this issue, we propose an active inference method, referred to as spatial concept formation with information gain-based active exploration (SpCoAE) that combines sequential Bayesian inference using particle filters and information gain-based destination determination in a probabilistic generative model. This study interprets the robot's action as a selection of destinations to ask the user, `What kind of place is this?' in the context of active inference. This study provides insights into the technical aspects of the proposed method, including active perception and exploration by the robot, and how the method can enable mobile robots to learn spatial concepts through active exploration. Our experiment demonstrated the effectiveness of the SpCoAE in efficiently determining a destination for learning appropriate spatial concepts in home environments.
description: Accepted to Advanced Robotics
The Phone Walkers: A study of human dependence on inactive mobile devices
Creators: name: Schaposnik, Laura P.
name: Unwin, James
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The development of mobile phones has largely increased human interactions. Whilst the use of these devices for communication has received significant attention, there has been little analysis of more passive interactions. Through census data on casual social groups, this work suggests a clear pattern of mobile phones being carried in people's hands, without the person using it (that is, not looking at it). Moreover, this study suggests that when individuals join members of the opposite sex there is a clear tendency to stop holding mobile phones whilst walking. Although it is not clear why people hold their phones whilst walking in such large proportions (38% of solitary women, and 31% of solitary men), we highlight several possible explanation for holding the device, including the need to advertise status and affluence, to maintain immediate connection with friends and family, and to mitigate feelings related to anxiety and security.
description: To appear in "Behaviour". 21 pages; 7 figures; Appendix in journal version only
The character and prevalence of third minima in actinide fission barriers
Creators: name: Ichikawa, Takatoshi
name: Möller, Peter
name: Sierk, Arnold J
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The double-humped structure of many actinide fission barriers is well established both experimentally and theoretically. There is also evidence, both experimental and theoretical, that some actinide nuclei have barriers with a third minimum, outside the second, fission-isomeric minimum. We perform a large-scale, systematic calculation of actinide fission barriers to identify which actinide nuclei exhibit third minima. We find that only a relatively few nuclei accessible to experiment exhibit third minima in their barriers, approximately nuclei with proton number $Z$ in the range $88 \leq Z \leq 94$ and nucleon number $A$ in the range $230 \leq A \leq 236 $. We find that the third minimum is less than 1 MeV deep for light Th and U isotopes. This is consistent with some previous experimental and theoretical results, but differs from some others. We discuss possible origins of these incompatible results and what are the most realistic predictions of where third minima are observable.
Multiwavelength intraday variability: what do the studies tell us about blazar jets?
Creators: name: Bhatta, Gopal
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this presentation, we report the results of intraday variability in the optical (BVRI bands) and hard X-ray band (3-79 keV) in a number of blazars. In the optical microvariability studies of the blazars S5 0716+714 and BL Lac, we observed many interesting features such as rapid variability, large variability amplitude, presence of characteristic timescales, bluer-when-brighter achromatic behavior, and single power-law power spectral density. In {\it NuSTAR} observations of several blazars, using spectral and timing analysis, we found similar features consistent with the optical studies. In addition, in BL Lacs we estimated the Lorentz factor of the population of highest energy electrons emitting synchrotron emission, and whereas in flat-spectrum radio quasars, using external Compton models, we estimated the energy of the lower end of the injected electrons to be a few tens of Lorentz factors. In addition, we find that the low flux state exhibit more rapid variability in contrast to the previously reported results showing high flux states displaying rapid variability. In both the studies, the size of the emission regions estimated using variability timescales turn out to be an order magnitude smaller than the gravitational radius of a typical black-hole masses between $\sim 10^8-10^9$ solar masses, believed to be at the center of the radio-loud AGN. The results of the studies suggest that these low-amplitude rapid variability might originate as a result of magnetohydrodynamical instabilities near the base of the jets triggered by the processes modulated by the magnetic field at accretion disc.
description: Proceedings IAU General Assembly, Vienna 2018; Focus Meeting, Radio Galaxies: Resolving the AGN phenomenon
A Neuromorphic VLSI Design for Spike Timing and Rate Based Synaptic Plasticity
Creators: name: Azghadi, Mostafa Rahimi
name: Al-Sarawi, Said
name: Abbott, Derek
name: Iannella, Nicolangelo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Triplet-based Spike Timing Dependent Plasticity (TSTDP) is a powerful synaptic plasticity rule that acts beyond conventional pair-based STDP (PSTDP). Here, the TSTDP is capable of reproducing the outcomes from a variety of biological experiments, while the PSTDP rule fails to reproduce them. Additionally, it has been shown that the behaviour inherent to the spike rate-based Bienenstock-Cooper-Munro (BCM) synaptic plasticity rule can also emerge from the TSTDP rule. This paper proposes an analog implementation of the TSTDP rule. The proposed VLSI circuit has been designed using the AMS 0.35 um CMOS process and has been simulated using design kits for Synopsys and Cadence tools. Simulation results demonstrate how well the proposed circuit can alter synaptic weights according to the timing difference amongst a set of different patterns of spikes. Furthermore, the circuit is shown to give rise to a BCM-like learning rule, which is a rate-based rule. To mimic implementation environment, a 1000 run Monte Carlo (MC) analysis was conducted on the proposed circuit. The presented MC simulation analysis and the simulation result from fine-tuned circuits show that, it is possible to mitigate the effect of process variations in the proof of concept circuit, however, a practical variation aware design technique is required to promise a high circuit performance in a large scale neural network. We believe that the proposed design can play a significant role in future VLSI implementations of both spike timing and rate based neuromorphic learning systems.
description: Accepted for publication in Neural Networks and is allowed to be distributed on Arxiv, according to the journal website at http://www.elsevier.com/authors/author-rights-and-responsibilities **Voluntary posting of Accepted Author Manuscripts in the arXiv subject repository is permitted
First steps in symplectic and spectral theory of integrable systems
Creators: name: Pelayo, Álvaro
name: Ngoc, San Vũ
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Symplectic Geometry (math.SG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: The paper intends to lay out the first steps towards constructing a unified framework to understand the symplectic and spectral theory of finite dimensional integrable Hamiltonian systems. While it is difficult to know what the best approach to such a large classification task would be, it is possible to single out some promising directions and preliminary problems. This paper discusses them and hints at a possible path, still loosely defined, to arrive at a classification. It mainly relies on recent progress concerning integrable systems with only non-hyperbolic and non-degenerate singularities. This work originated in an attempt to develop a theory aimed at answering some questions in quantum spectroscopy. Even though quantum integrable systems date back to the early days of quantum mechanics, such as the work of Bohr, Sommerfeld and Einstein, the theory did not blossom at the time. The development of semiclassical analysis with microlocal techniques in the last forty years now permits a constant interplay between spectral theory and symplectic geometry. A main goal of this paper is to emphasize the symplectic issues that are relevant to quantum mechanical integrable systems, and to propose a strategy to solve them.
description: 48 pages. Journal request: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Discrete Contin. Dyn. Syst. following peer review. The definitive publisher-authenticated version (Discrete Contin. Dyn. Syst. vol. 32 (2012) p. 3325-3377) is available online at https://www.aimsciences.org/journals/displayArticlesnew.jsp?paperID=7403
Inequalities for the polar derivative of a polynomial
Creators: name: Rather, N. A.
name: Gulzar, Suhail
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30A10, 30C10, 30E10

description: Let $ P(z) $ be a polynomial of degree $ n $ and for any real or complex number $α,$ let $D_αP(z)=nP(z)+(α-z)P^{\prime}(z)$ denote the polar derivative with respect to $α.$ In this paper, we obtain generalizations of some inequalities for the polar derivative of a polynomial.
description: 14 pages
Ultra-low-noise supercontinuum generation with a flat near-zero normal dispersion fiber
Creators: name: S., Shreesha Rao D.
name: Engelsholm, Rasmus D.
name: Gonzalo, Iván B.
name: Zhou, Binbin
name: Bowen, Patrick
name: Moselund, Peter M.
name: Bang, Ole
name: Bache, Morten
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A pure silica photonic crystal fiber with a group velocity dispersion ($β_2$) of 4 ps$^2$/km at 1.55 $μ$m and less than 7 ps$^2$/km from 1.32 $μ$m to the zero dispersion wavelength (ZDW) 1.80 $μ$m was designed and fabricated. The dispersion of the fiber was measured experimentally and found to agree with the fiber design, which also provides low loss below 1.83 $μ$m due to eight outer rings with increased hole diameter. The fiber was pumped with a 1.55 $μ$m, 125 fs laser and, at the maximum in-coupled peak power (P$_0$) of 9 kW, a 1.34$-$1.82 $μ$m low-noise spectrum with a relative intensity noise below 2.2\% was measured. The numerical modeling agreed very well with the experiments and showed that P$_0$ could be increased to 26 kW before noise from solitons above the ZDW started to influence the spectrum by pushing high-noise dispersive waves through the spectrum.
Two Dimensional Isometric Tensor Networks on an Infinite Strip
Creators: name: Wu, Yantao
name: Anand, Sajant
name: Lin, Sheng-Hsuan
name: Pollmann, Frank
name: Zaletel, Michael P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The exact contraction of a generic two-dimensional (2D) tensor network state (TNS) is known to be exponentially hard, making simulation of 2D systems difficult. The recently introduced class of isometric TNS (isoTNS) represents a subset of TNS that allows for efficient simulation of such systems on finite square lattices. The isoTNS ansatz requires the identification of an "orthogonality column" of tensors, within which one-dimensional matrix product state (MPS) methods can be used for calculation of observables and optimization of tensors. Here we extend isoTNS to infinitely long strip geometries and introduce an infinite version of the Moses Move algorithm for moving the orthogonality column around the network. Using this algorithm, we iteratively transform an infinite MPS representation of a 2D quantum state into a strip isoTNS and investigate the entanglement properties of the resulting state. In addition, we demonstrate that the local observables can be evaluated efficiently. Finally, we introduce an infinite time-evolving block decimation algorithm (iTEBD\textsuperscript{2}) and use it to approximate the ground state of the 2D transverse field Ising model on lattices of infinite strip geometry.
description: 21 pages, 12 figures; Version accepted for publication
Proceedings 1st International Workshop on Strategic Reasoning
Creators: name: Mogavero, Fabio
name: Murano, Aniello
name: Vardi, Moshe Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Logic in Computer Science (cs.LO)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: This volume contains the proceedings of the 1st International Workshop on Strategic Reasoning 2013 (SR 2013), held in Rome (Italy), March 1617, 2013. The SR workshop aims to bring together researchers, possibly with different backgrounds, working on various aspects of strategic reasoning in computer science, both from a theoretical and a practical point of view. This year SR has hosted four outstanding invited talks by Krishnendu Chatterjee, Alessio R. Lomuscio, Jean-Francois Raskin, and Michael Wooldridge. Moreover, the program committee selected 13 papers among the 23 contributions submitted. Almost all of them have been revised by three reviews and the contributions have been selected according to quality and relevance to the topics of the workshop.
Understanding The Reversible Electrodeposition of Al in Low-Cost Room Temperature Molten Salts
Creators: name: Garcia-Mendez, Regina
name: Zheng, Jingxu
name: Bock, David C.
name: Jaye, Cherno
name: Fischer, Daniel A.
name: Marschilok, Amy C.
name: Takeuchi, Kenneth J.
name: Takeuchi, Esther S.
name: Archer, Lynden A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Aluminum is the most earth-abundant metal, is trivalent, is inert in ambient humid air, and has a density approximately four-times that of lithium at room temperature. These attributes make it an attractive material for cost-effective, long-duration storage of electrical energy in batteries. Scientific discoveries in the past decade have established that secondary Al batteries can be created by paring an Al anode with a graphite or transition metal oxide cathode, in imidazolium-based, room-temperature ionic-liquid-Aluminum chloride electrolytes. Here we report findings from a systematic study that sheds light on the structural requirements, physicochemical, and transport properties of the ionic liquid electrolytes responsible for the high reversibility of Al battery anodes. We find that the most important interfacial and transport properties of these electrolytes can be achieved in other electrolytes, including ammonium-based molten salts that are available at costs as much as twenty-times lower than the ionic liquid-Aluminum chloride melt. High Al reversibility in ammonium- and imidazolium-based electrolytes is specifically shown to require a critical ratio of the solvation species, where Lewis acidity and beneficial interfacial reactions continuously etch the alumina resistive interfacial layer and form beneficial solid electrolyte interphase at the anode. We report further that successful development of new electrolyte families that support high Al anode reversibility also provides a good platform for detailed studies of the working mechanisms of an intercalation graphite cathode using X-ray absorption spectroscopy. Our findings therefore open new opportunities for developing simple, cost-effective, room-temperature Al batteries that enable long-duration electrical energy storage.
description: 44 pages, 26 figures, 1 table
Directional supercontinuum generation: the role of the soliton
Creators: name: Christensen, Simon
name: S., Shreesha Rao D.
name: Bang, Ole
name: Bache, Morten
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper we numerically study supercontinuum generation by pumping a silicon nitride waveguide, with two zero-dispersion wavelengths, with femtosecond pulses. The waveguide dispersion is designed so that the pump pulse is in the normal-dispersion regime. We show that because of self-phase modulation, the initial pulse broadens into the anomalous-dispersion regime, which is sandwiched between the two normal-dispersion regimes, and here a soliton is formed. The interaction of the soliton and the broadened pulse in the normal-dispersion regime causes additional spectral broadening through formation of dispersive waves by non-degenerate four-wave mixing and cross-phase modulation. This broadening occurs mainly towards the second normal-dispersion regime. We show that pumping in either normal-dispersion regime allows broadening towards the other normal-dispersion regime. This ability to steer the continuum extension towards the direction of the other normal-dispersion regime beyond the sandwiched anomalous-dispersion regime underlies the directional supercontinuum notation. We numerically confirm the approach in a standard silica microstructured fiber geometry with two zero-dispersion wavelengths.
EXPLORATION OF THORIUM HYDROTRIS(PYRAZOLYL)BORATE COMPLEXES TO ACCESS RARE MULTIPLE BONDS
Creators: name: Newberry, Courtney Joy
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: F-block chemistry
Organometallic chemistry

description: Actinide complexes have been targeted for their potential in group transfer applications. The study of these metals, such as thorium and uranium, is essential to better understand the reactions these metals are capable of facilitating. Hydrotris(pyrazolyl)borates such as hydrotris(3,5-dimethylpyrazolyl)-borate (Tp*) and hydrotris(pyrazolyl)-borate (Tp) are superbulky, scorpionate ligands that have previously been used to synthesize novel uranium complexes and probe the reactivity of these materials. Similar thorium analogs have also been synthesized, but their reactivity has yet to be explored in great depth. Tp*ThCl3(THF) and Tp2ThCl2 have been reproduced and investigated as possible starting materials for such reactivity studies. While the former was found to be largely unreactive, the latter presents promising reactivity for the synthesis of thorium-element multiple bonds, and a novel thorium imido, Tp2Th(NDipp)(THF), has been synthesized and characterized using this scaffold.
 The reactivity of a uranium tetrakis(imido), [U(NDipp)4][K2], has also been investigated to probe the prospect of group transfer reactions for potential catalysis applications in the future. An isocyanate, PhNCO, was reacted with this compound; the observed product showed that group transfer was incomplete, and a four-membered metallocycle product is likely formed instead. The synthesis of a novel thorium tris(imido) has also been targeted, and preliminary results are outlined.
title: Prosthetic hand control: phase-based grasping pattern recognition using sEMG and computer vision
Creators: name: Wang, Shuo
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Pattern recognition using surface Electromyography (sEMG) applied on prosthesis control has attracted much attention. The strong relationship between visual perception and hand manipulation makes vision play an essential role in prosthetic hand control. Utilizing both sEMG and visual information to improve prosthetic hand control became a promising research direction. In most existing hand grasping classification research using sEMG, the signals collected during the firmly grasped period were used for classification because stable signals facilitated classification performance. However, using signals collected from the firm grasp period may cause a delay in controlling the prosthetic hand. Targeting this issue, we explored a new way for grasp classification using signals collected before the firm grasp. We examined accuracy changes during the reaching and grasping process and identified an sEMG sweet period, starts at 1100 ms and ends at 1400 ms in the early grasping phase, that can leverage the grasp classi- fication accuracy for the earlier grasp detection. Although Surface Electromyography (sEMG) achieved a feasible solution in a laboratory environment, the classification accuracy is not high enough for real-time application. Researchers proposed integrating sEMG signals with another feature not affected by amputation. The muscular coordination between vision and hand manipulation makes us consider including the visual information in prosthetic hand control. In this study, we identify another sweet period, starts at 0 ms and ends at 320 ms during the early reaching phase, in which the vision data could better classify the grasp patterns. Moreover, the visual classification results from the sweet period could be naturally integrated with sEMG data collected during the grasp phase. After the integration, the accuracy of grasp classification increased from 85.5% (only sEMG) to 90.06% (integrated). Knowledge gained from this study encourages us to further explore the methods for incorporating computer vision into myoelectric data to enhance the movement control of prosthetic hands.
First-principles generalized gradient approximation (GGA) +Ud+Up studies of electronic structures and optical properties in cubic HfO2
Creators: name: Li, Jinping
name: Meng, Songhe
name: Li, Lingling
name: Lu, Hantao
name: Tohyama, Takami
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The electronic structures and optical properties of cubic HfO2 are calculated by means of generalized gradient approximation (GGA) +U approach. Without on-site Coulomb interactions, the band gap of cubic HfO2 is 2.92eV, much lower than the experimental value (5.7eV). Introducing the Coulomb interactions of 5d orbitals on Hf atom (Ud) and of 2p orbitals on O atom (Up), we can reproduce the experimental value of the band gap. The calculated dielectric function of cubic HfO2 by the GGA+ Ud + Up approach predicts the presence of a shoulder structure below the main peak of the absorption spectrum. These indicate that the GGA +Ud +UP approach is a convenient and powerful method to calculate and predict the electronic structures and the optical properties of wide-gap optical materials.
description: 11 pages and 5 figures
title: Dirk Krauße: Hochdorf III. Das Trink- und Speiseservice aus dem späthallstattzeitlichen Fürstengrab von Eberdingen-Hochdorf, Kreis Ludwigsburg, 1996
Creators: name: Frirdich, Christiane
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: Dirk Krauße: Hochdorf III. Das Trink- und Speiseservice aus dem späthallstattzeitlichen Fürstengrab von Eberdingen-Hochdorf, Kreis Ludwigsburg. Forschungen und Berichte zur Vor- und Frühgeschichte in Baden Württemberg Band 64 (Stuttgart 1996). Mit Beiträgen von Gerhard Längerer. 502 Seiten, 237 Abbildungen, 30 Tafeln. ISBN 3806212783
Shape of optimal active flagella
Creators: name: Eloy, Christophe
name: Lauga, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Many eukaryotic cells use the active waving motion of flexible flagella to self-propel in viscous fluids. However, the criteria governing the selection of particular flagellar waveforms among all possible shapes has proved elusive so far. To address this question, we derive computationally the optimal shape of an internally-forced periodic planar flagellum deforming as a travelling wave. The optimum is here defined as the shape leading to a given swimming speed with minimum energetic cost. To calculate the energetic cost though, we consider the irreversible internal power expanded by the molecular motors forcing the flagellum, only a portion of which ending up dissipated in the fluid. This optimisation approach allows us to derive a family of shapes depending on a single dimensionless number quantifying the relative importance of elastic to viscous effects: the Sperm number. The computed optimal shapes are found to agree with the waveforms observed on spermatozoon of marine organisms, thus suggesting that these eukaryotic flagella might have evolved to be mechanically optimal.
description: 10 pages, 5 figures
Impurity and dispersion effects on the linear magnetoresistance in the quantum limit
Creators: name: Li, Shuai
name: Lu, Hai-Zhou
name: Xie, X. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetoresistance, that is, the change of the resistance with the magnetic field, is usually a quadratic function of the field strength. A linear magnetoresistance usually reveals extraordinary properties of a system. In the quantum limit where only the lowest Landau band is occupied, a quantum linear magnetoresistance was believed to be the signature of the Weyl fermions with 3D linear dispersion. Here, we comparatively investigate the quantum-limit magnetoresistance of systems with different band dispersions as well as different types of impurities. We find that the magnetoresistance can also be linear for the quadratic energy dispersion. We show that both longitudinal and transverse magnetoresistance can be linear if long-range-Gaussian-type impurities dominate, but Coulomb-type impurities can only induce linear transverse magnetoresistance. Moreover, we find a negative longitudinal magnetoresistance in massless Dirac fermions, regardless of the impurity type, as a result of the combined effect of the linear dispersion and the scattering mechanism. Our findings well explain some of the linear magnetoresistance observed in the experiments and provide insights to the understanding of quantum-limit magnetoresistance.
Resilience and Load Balancing in Fog Networks: A Multi-Criteria Decision Analysis Approach
Creators: name: Ebrahim, Maad
name: Hafid, Abdelhakim
Publisher: name: arXiv
Year: 2022
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The advent of Cloud Computing enabled the proliferation of IoT applications for smart environments. However, the distance of these resources makes them unsuitable for delay-sensitive applications. Hence, Fog Computing has emerged to provide such capabilities in proximity to end devices through distributed resources. These limited resources can collaborate to serve distributed IoT application workflows using the concept of stateless micro Fog service replicas, which provides resiliency and maintains service availability in the face of failures. Load balancing supports this collaboration by optimally assigning workloads to appropriate services, i.e., distributing the load among Fog nodes to fairly utilize compute and network resources and minimize execution delays. In this paper, we propose using ELECTRE, a Multi-Criteria Decision Analysis (MCDA) approach, to efficiently balance the load in Fog environments. We considered multiple objectives to make service selection decisions, including compute and network load information. We evaluate our approach in a realistic unbalanced topological setup with heterogeneous workload requirements. To the best of our knowledge, this is the first time ELECTRE-based methods are used to balance the load in Fog environments. Through simulations, we compared the performance of our proposed approach with traditional baseline methods that are commonly used in practice, namely random, Round-Robin, nearest node, and fastest service selection algorithms. In terms of the overall system performance, our approach outperforms these methods with up to 67% improvement.
description: 20 pages, 22 figures, 4 tables
Asymptotically nonlocal gravity
Creators: name: Boos, Jens
name: Carone, Christopher D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Asymptotically nonlocal field theories interpolate between Lee-Wick theories with multiple propagator poles, and ghost-free nonlocal theories. Previous work on asymptotically nonlocal scalar, Abelian, and non-Abelian gauge theories has demonstrated the existence of an emergent regulator scale that is hierarchically smaller than the lightest Lee-Wick partner, in a limit where the Lee-Wick spectrum becomes dense and decoupled. We generalize this construction to linearized gravity, and demonstrate the emergent regulator scale in three examples: by studying the resolution of the singularity (i) at the origin in the classical solution for the metric of a point particle, and (ii) in the nonrelativistic gravitational potential computed via a one-graviton exchange amplitude; (iii) we also show how this derived scale regulates the one-loop graviton contribution to the self energy of a real scalar field. We comment briefly on the generalization of our approach to the full, nonlinear theory of gravity.
description: 18 pages LaTeX, 1 Figure. v2: references added. v3: Discussion clarified and references added
title: Achim Werner / Jens Dummer: Steinzeit – Mahlzeit. Von den ersten Bauern bis Ötzi. Mit 55 neuen Rezepten vom 5-Steine-Koch.
Creators: name: Auler, Jost
name: Wlodek, Ute
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: Achim Werner / Jens Dummer, Steinzeit – Mahlzeit. Von den ersten Bauern bis Ötzi. Mit 55 neuen Rezepten vom 5-Steine-Koch. Theiss Verlag Stuttgart 2013. 96 Seiten, über 50, zumeist farbige Abbildungen. ISBN 978-3-8062-2580-8.
Splitting of levels in a circular dielectric waveguide
Creators: name: Petrov, Nikolai I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A splitting of modes in a circular graded-index optical fiber is demonstrated by solving the full Maxwell equations using the perturbation analysis. It is shown that the degeneracy of vortex Laguerre-Gauss modes with distinct orbital angular momentum (OAM) and polarization (spin) but the same total angular momentum is lifted due to the spin-orbit (vector) and tensor forces. Numerical estimations of group delays of modes in optical fiber and frequency splitting in Fabry-Perot and ring resonators are presented.
description: 3 pages, 2 figures
title: Bayliss, A., Hines, J., Høilund Nielsen, K., Mc- Cormac, G. & Scull, Chr.: Anglo-Saxon graves and grave goods of the 6th and 7th centuries AD: a chronological framework. Edited by J. Hines & A. Bayliss. The Society for Medieval Archaeology Monograph 33.
Creators: name: Siegmund, Frank
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: Bayliss, A., Hines, J., Høilund Nielsen, K., Mc-Cormac, G. & Scull, Chr. (2013). Anglo-Saxon graves and grave goods of the 6th and 7th centuries AD: a chronological framework. Edited by J. Hines & A. Bayliss. The Society for Medieval Archaeology Monograph 33. London: The Society for Medieval Archaeology. ISBN 978-1-909662-06-3. 614 Seiten, 478 Abbildungen, 129 Tabellen
title: Engagement has its consequences: the emergence of the representations of archaeology in social media
Creators: name: Huvila, Isto
Publisher: name: University Library Heidelberg
Year: 2014

description: Social media werden oft als ein Instrument der Öffnung von Archäologen in eine Öffentlichkeit hinein wahrgenommen. Tatsächlich stehen sie jedoch für eine bidirektionale Kommunikation, sie sind ein Feld der Teilnahme und Aushandlung, das aus einer Infrastruktur der Kommunikation, einem Inhalt und Teilnehmern besteht. Der Beitrag diskutiert die Konsequenzen und Implikationen der Bidirektionalität der Social media. Auf der Grundlage einer empirischen Studie skizziert er die Stellung und Inbesitznahme von Archäologie in vier unterschiedlichen Bereichen der Social media. Die Analyse zeigt, wie populäre und wissenschaftliche archäologische Ergebnisse in die Social media hineingezogen werden, und wie die Bemühungen, die Bürger zu beteiligen, zu einer beidseitigen Bindung führen. Menschen beschäftigen sich mit Archäologen, aber auch anderen Bürgern, um an einem Austausch von Wissen und an einer Verhandlung über die Natur und Bedeutung von Archäologie teilzunehmen. Die Ergebnisse unserer Studie werfen ein Licht darauf, wie Social media nicht nur populäre Meinungen über Archäologie und ihre Bedeutung beeinflussen, sondern umgekehrt auch das bestehende archäologische Wissen einschließlich unserer Fragestellungen, seine materielle Darstellung und das Wesen der archäologischen Arbeit berühren.
description: Even if social media is often seen mainly as an instrument for outreach from the archaeologists to the public, it is a twoway
channel of communication and a context for participation and negotiation that consists of an information infrastructure, content and participants. This article discusses the consequences and implications of the bidirectionality of social media. The discussion is based on an empirical study of the representations and reappropriations of archaeology in four different social media services (Facebook, Twitter, Second Life, Pinterest). The analysis shows how the popular and scholarly archaeological information is appropriated in the social media services and how the efforts to engage people lead to a double bind of engagement. People engage archaeologists but also other members of the public to participate in an exchange of knowledge and negotiation of the nature and relevance of archaeology. The findings of the study shed light on the emerging patterns of how the use of social media can affect not only the popular ideas of archaeology and the contexts of its relevance, but also archaeological knowledge (i.e. what is known and what is desirable to be known), its documentary representations and the essence of the archaeological work itself.
Coevolutionary Framework for Generalized Multimodal Multi-objective Optimization
Creators: name: Li, Wenhua
name: Yao, Xingyi
name: Li, Kaiwen
name: Wang, Rui
name: Zhang, Tao
name: Wang, Ling
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Most multimodal multi-objective evolutionary algorithms (MMEAs) aim to find all global Pareto optimal sets (PSs) for a multimodal multi-objective optimization problem (MMOP). However, in real-world problems, decision makers (DMs) may be also interested in local PSs. Also, searching for both global and local PSs is more general in view of dealing with MMOPs, which can be seen as a generalized MMOP. In addition, the state-of-the-art MMEAs exhibit poor convergence on high-dimension MMOPs. To address the above two issues, in this study, a novel coevolutionary framework termed CoMMEA for multimodal multi-objective optimization is proposed to better obtain both global and local PSs, and simultaneously, to improve the convergence performance in dealing with high-dimension MMOPs. Specifically, the CoMMEA introduces two archives to the search process, and coevolves them simultaneously through effective knowledge transfer. The convergence archive assists the CoMMEA to quickly approaching the Pareto optimal front (PF). The knowledge of the converged solutions is then transferred to the diversity archive which utilizes the local convergence indicator and the $ε$-dominance-based method to obtain global and local PSs effectively. Experimental results show that CoMMEA is competitive compared to seven state-of-the-art MMEAs on fifty-four complex MMOPs.
CO Component Estimation Based on the Independent Component Analysis
Creators: name: Ichiki, Kiyotomo
name: Kaji, Ryohei
name: Yamamoto, Hiroaki
name: Takeuchi, Tsutomu T.
name: Fukui, Yasuo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Fast Independent Component Analysis (FastICA) is a component separation algorithm based on the levels of non-Gaussianity. Here we apply the FastICA to the component separation problem of the microwave background including carbon monoxide (CO) line emissions that are found to contaminate the PLANCK High Frequency Instrument (HFI) data. Specifically we prepare 100GHz, 143GHz, and 217GHz mock microwave sky maps including galactic thermal dust, NANTEN CO line, and the Cosmic Microwave Background (CMB) emissions, and then estimate the independent components based on the kurtosis. We find that the FastICA can successfully estimate the CO component as the first independent component in our deflection algorithm as its distribution has the largest degree of non-Gaussianity among the components. By subtracting the CO and the dust components from the original sky maps, we will be able to make an unbiased estimate of the cosmological CMB angular power spectrum.
description: 7 pages, 8 figures
title: Σκόπιμες ηλεκτρομαγνητικές παρεμβολές σε μη επανδρωμένα αεροχήματα με τη χρήση υψηλής ισχύος παλμικών μικροκυματικών κυματομορφών συχνότητας 1,5 GHz - 2,5 GHz
title: Intentional electromagnetic interference on unmanned aerial vehicles using pulsed high-power microwaves with frequency of 1.5 GHz – 2.5 GHz
titleType: AlternativeTitle
Creators: name: Χαρβαλάκος, Μιχάλης
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2022
Subjects: Ανηχοϊκός θάλαμος
Μη επανδρωμένα ιπτάμενα οχήματα
Ηλεκτρομαγνητικοί παλμοί
UAV
Κύκλος εργασίας παλμού
Διάρκεια παλμού
Ηλεκτρομαγνητικά υψηλής ισχύος
Σκόπιμες ηλεκτρομαγνητικές παρεμβολές
Μικροκυματικοί παλμοί υψηλής ισχύος

description: Σκοπός της παρούσας μελέτης είναι η περιγραφή της διερεύνησης των αποτελεσμάτων που προκαλεί η εκπομπή παλμικών μικροκυματικών σημάτων, με διαφορετικά χαρακτηριστικά, σε droneκαι η ερμηνεία των κρίσιμων παραμέτρων του παλμού που επηρεάζουν δραστικά τη λειτουργία τους. Μέχρι σήμερα μεγάλος αριθμός μελετών έχει ως αντικείμενο την εξέταση των δυσμενών αποτελεσμάτων που μπορεί να επιφέρει η έκθεση των ηλεκτρονικών κυκλωμάτων σε παλμικό σήμα, προκαλώντας συμβάντα στιγμιαίων και αναστρέψιμων δυσλειτουργιών τους έως και την ολική καταστροφή τους. Ο σκοπός της παρούσας μελέτης διαφοροποιείται επί του συγκεκριμένου θέματος σε δύο (2) βασικά στοιχεία, όπως παρακάτω: 1. Στη διερεύνηση της πιθανότητας εντοπισμού συχνοτήτων – συχνοτικών περιοχών στη ζώνη 1,5 – 2,5 GHz, όπου η επίδραση του παλμικού σήματος προκαλεί άμεσα και κρίσιμα αποτελέσματα στη λειτουργία του drone με τη χρήση δεδομένης και σταθερής ισχύος παλμού. 2. Στον έλεγχο της παραμετροποίησης του παλμικού σήματος, μέσω εκτέλεσης πειραμάτων, για τον εντοπισμό των χαρακτηριστικών του παλμού που ενδεχομένως να αποτελεί ισχυρό παράγοντα πρόκλησης της σχετικής επίδρασης στο drone.
Unavoidable decoherence in the quantum control of an unknown state
Creators: name: Kielpinski, D.
name: Briggs, R. A.
name: Wiseman, H. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A common objective for quantum control is to force a quantum system, initially in an unknown state, into a particular target subspace. We show that if the subspace is required to be a decoherence-free subspace of dimension greater than 1, then such control must be decoherent. That is, it will take almost any pure state to a mixed state. We make no assumptions about the control mechanism, but our result implies that for this purpose coherent control offers no advantage, in principle, over the obvious measurement-based feedback protocol.
description: 3 pages. To be published in Quantum Measurements & Quantum Metrology http://versita.com/qm/
Supplementary Information from Novel and flexible parameter estimation methods for data-consistent inversion in mechanistic modelling
Creators: name: Rumbell, Timothy
name: Parikh, Jaimit
name: Kozloski, James
name: Gurev, Viatcheslav
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310299
subject: Bioinformatics and computational biology not elsewhere classified
classificationCode: 460207
subject: Modelling and simulation
classificationCode: 460299
subject: Artificial intelligence not elsewhere classified

description: Parameter estimation for biological model ensembles with data-consistent inversion - Supplementary Information text file
Entangled state engineering of vibrational modes in a multi-membrane optomechanical system
Creators: name: Xu, Xun-Wei
name: Zhao, Yan-Jun
name: Liu, Yu-xi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a method to generate entangled states of the vibrational modes of N membranes which are coupled to a cavity mode via the radiation pressure. Using sideband excitations, we show that arbitrary entangled states of vibrational modes of different membranes can be produced in principle by sequentially applying a series of classical pulses with desired frequencies, phases and durations. As examples, we show how to synthesize several typical entangled states, for example, Bell states, NOON states, GHZ states and W states. The environmental effect, information leakage, and experimental feasibility are briefly discussed. Our proposal can also be applied to other experimental setups of optomechanical systems, in which many mechanical resonators are coupled to a common sing-mode cavity field via the radiation pressure.
description: 15 pages, 10 figures
Chiral Nelson--Barr Models: Quality and Cosmology
Creators: name: Asadi, Pouya
name: Homiller, Samuel
name: Lu, Qianshu
name: Reece, Matthew
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It was recently shown that domain walls from the spontaneous breaking of CP symmetry are exactly stable, and must be inflated away to recover a viable cosmology. We investigate the phenomenological implications of this result in Nelson--Barr solutions of the strong CP problem. Combined with the upper bound on the scale of spontaneous CP breaking necessary to suppress contributions from dangerous, nonrenormalizable operators to $\barθ$, this puts an upper bound on the scale of inflation and the reheating temperature after inflation. Minimal Nelson--Barr models are therefore in tension with thermal leptogenesis, models of large-field inflation, or potential future observations of signals from topological remnants of an unrelated, subsequent phase transition. We study how extending Nelson--Barr models with a new, continuous chiral gauge symmetry can ameliorate this tension by forbidding the dangerous dimension-five operators. In particular, we show that gauging a linear combination of baryon number and hypercharge allows for an economic, anomaly-free extension of the minimal Nelson--Barr model, and discuss the phenomenological implications.
description: 23 pages + appendices, 2 figures. v3: matches published version
Meaning-focused and Quantum-inspired Information Retrieval
Creators: name: Aerts, Diederik
name: Broekaert, Jan
name: Sozzo, Sandro
name: Veloz, Tomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: Quantum Physics (quant-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In recent years, quantum-based methods have promisingly integrated the traditional procedures in information retrieval (IR) and natural language processing (NLP). Inspired by our research on the identification and application of quantum structures in cognition, more specifically our work on the representation of concepts and their combinations, we put forward a 'quantum meaning based' framework for structured query retrieval in text corpora and standardized testing corpora. This scheme for IR rests on considering as basic notions, (i) 'entities of meaning', e.g., concepts and their combinations and (ii) traces of such entities of meaning, which is how documents are considered in this approach. The meaning content of these 'entities of meaning' is reconstructed by solving an 'inverse problem' in the quantum formalism, consisting of reconstructing the full states of the entities of meaning from their collapsed states identified as traces in relevant documents. The advantages with respect to traditional approaches, such as Latent Semantic Analysis (LSA), are discussed by means of concrete examples.
description: 11 pages
The Additive Structure of Integers with the Lower Wythoff Sequence
Creators: name: Khani, Mohsen
name: Zarei, Afshin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03C64

description: We have provided a pure model-theoretic proof for the decidability of the additive structure of the integers together with the function {f} sending {x} to {[ϕx]} where ϕ is the golden ratio.
description: 16 pages
The level of pairs of polynomials
Creators: name: Boix, Alberto F.
name: Noordman, Marc Paul
name: Top, Jaap
Publisher: name: arXiv
Year: 2019
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: Primary 13A35, Secondary 13N10, 14B05, 14F10, 34M15

description: Given a polynomial $f$ with coefficients in a field of prime characteristic $p$, it is known that there exists a differential operator that raises $1/f$ to its $p$th power. We first discuss a relation between the `level' of this differential operator and the notion of `stratification' in the case of hyperelliptic curves. Next we extend the notion of level to that of a pair of polynomials. We prove some basic properties and we compute this level in certain special cases. In particular we present examples of polynomials $g$ and $f$ such that there is no differential operator raising $g/f$ to its $p$th power.
description: 14 pages, comments are welcome