cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Entanglement between Valence and Sea Quarks in Hadrons of 1+1 Dimensional QCD
Creators: name: Ehlers, Peter J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The conceptual interpretation of valence- and sea-quark separation, which is a key aspect of the parton model and of an intuitive picture of hadron structure, becomes obscured by quantum effects in QCD. This suggests that there may be measures of entanglement between quark degrees of freedom that are present in QCD, but absent in the intuitive picture with a clear valence-sea (VS) separation. In this paper, we define the first rigorous measure of VS entanglement in QCD in an attempt to bring conceptual clarity to this issue, and, potentially, to find a measure of the applicability of the parton model to QCD bound states. This VS entanglement vanishes in the large-$N_c$ limit, and it remains low when finite-$N_c$ states resemble their large-$N_c$ counterparts. We perform a numerical study of VS entanglement in 1+1 dimensional discrete light-cone quantized QCD, and in the process develop a method for building the color-singlet basis of 1+1d QCD that is manifestly complete and orthogonal by construction. We calculate this VS entanglement entropy for the first time and find that it is relatively low for the first few excited states of both mesons and baryons compared to all other states in the spectrum, with the VS entropy of ground state hadrons providing a minimum. We also see that for ground state mesons the entropy is well described in the $1/N_c$ approximation. These results suggest that low energy hadrons may be the only QCD bound states for which the large-$N_c$ expansion, and perhaps the parton model, provide an accurate description. This work also provides the first evidence that the VS entanglement entropy of QCD in 3+1d, which would likely serve as an order parameter for the transition between quark and hadron degrees of freedom, may be perturbatively accessible through a large-$N_c$ expansion.
description: 58 pages, 15 figures
Additional file 1 of Optimisation of the core subset for the APY approximation of genomic relationships
Creators: name: Pocrnic, Ivan
name: Lindgren, Finn
name: Tolhurst, Daniel
name: Herring, William O.
name: Gorjanc, Gregor
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 60506 Virology

description: Additional file 1. Accuracy of the conditional core selection approach in simulation with rank reduction. Here we show accuracy as the correlation between genomic estimated breeding values (GEBV) and true breeding values in simulation. For the Algorithm for Proven and Young (APY), the core subset was optimised on either the full or rank reduced matrix W.
Investigating walkability and bikeability in compact vs. new extensions: the case of Greater Cairo
Creators: name: Eldeeb, Sally
name: Masoumi, Houshmand
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 700 Künste und Unterhaltung::710 Landschaftsgestaltung, Raumplanung::710 Städtebau, Raumplanung, Landschaftsgestaltung
subject: sustainable development
subject: cycling
subject: walkability
subject: urban form
subject: gated communities
subject: mode choice
subject: travel behavior

description: Despite the urgent need to adopt sustainable transportation methods to reduce pollution, some cities, particularly in developing countries, are still prioritizing the construction of roads for private cars. The Greater Cairo Region is experiencing increased reliance on cars, causing strain on the road network, leading to traffic congestion, decreased walkability, and social isolation, especially in gated communities. Old Cairo downtown has implemented sustainable transportation options, but more action is needed from city authorities to prioritize sustainable transportation methods for pedestrians, cyclists, and public transit users to create livable cities and promote public health. The objective of this study is to assess the walkability and bikeability of three distinct city centers: Old Cairo, which represents the historic area of the Greater Cairo Region, and the newer extensions, namely, New Cairo and 6th October City. The analysis of walkability and bikeability will be based on the Walk Score metric, while the relationship with urban form integration will be evaluated using space syntax in-depth maps. The results indicate that the walkability rates in Old Cairo downtown surpass those of the newer extensions of the Greater Cairo Region due to the compact urban fabric and highly integrated street network and activities. In conclusion, this study sheds light on the reasons for car dependency in the new extensions of Greater Cairo and emphasizes the significance of collaboration between local public transportation authorities, the Ministry of Housing, global organizations, and international agendas.
Massive Color-Kinematics Duality and Double-Copy for Kaluza-Klein Scattering Amplitudes
Creators: name: Li, Yao
name: Hang, Yan-Feng
name: He, Hong-Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the scattering amplitudes of massive Kaluza-Klein (KK) states under toroidal compactification. We present a shifting method to quantitatively derive the scattering amplitudes of massive KK gauge bosons and KK gravitons from the corresponding massless amplitudes in the noncompactified higher dimensional theories. With these we construct the massive KK scattering amplitudes by extending the double-copy relations of massless scattering amplitudes within the field theory framework, including both the BCJ and CHY methods, and build up their connections to the massive KK KLT relations. We present the massive BCJ-type double-copy construction of the $N$-point KK gauge boson/graviton scattering amplitudes, and as the applications we derive explicitly the four-point KK scattering amplitudes as well as the five-point KK scattering amplitudes. We further study the nonrelativistic limit of these massive scattering amplitudes with the heavy external KK states and discuss the impact of the compactified extra dimensions on the low energy gravitational potential. Finally, we analyze the four-point and $N$-point mass spectral conditions and newly propose a novel group theory approach to prove that only the KK theories under toroidal compactification can satisfy these conditions for directly realizing massive double-copy in the field theory framework.
description: 73 pages, JHEP final version. Only minor refinements, references added
Alberto Viciano, Cristo Salvador y Libertador del Hombre. Estúdio sobre la soteriología de Tertuliano, Ed. Universidad de Navarra, Pamplona 1986, 449 pp., 240X155, ISBN 84-313- 0963-6
Creators: name: Neiva, A. Costa
Publisher: name: Theologica
Year: 1994

description: Theologica, v. 29 n. 2 (1994): Santuários marianos | Braga e Viana do Castelo
Additional file 6 of Management of early-stage triple-negative breast cancer: recommendations of a panel of experts from the Brazilian Society of Mastology
Creators: name: Freitas-Junior, Ruffo
name: de Oliveira, Vilmar Marques
name: Frasson, Antonio Luiz
name: Cavalcante, Francisco Pimentel
name: Mansani, Fabio Postiglione
name: Mattar, André
name: Zerwes, Felipe Pereira
name: de Oliveira Freitas, Adriana Magalhães
name: de Souza, Alessandra Borba Anton
name: Damin, Andrea P.
name: dos Santos, Annamaria Massahud Rodrigues
name: Ruiz, Carlos Alberto
name: de Lucena, Clécio Ênio Murta
name: Millen, Eduardo Camargo
name: Bagnoli, Fábio
name: Andrade, Felipe
name: Rodrigues, Frank Lane Braga
name: Facina, Gil
name: Novita, Guilherme
name: Pedrini, Jose Luiz
name: Guará, José Pereira
name: Soares, Leonardo Ribeiro
name: de Nigro Corpa, Marcus Vinicius
name: Passos, Mauro
name: de Lucena Ferreira, Nancy Cristina Ferraz
name: Freitas, Nilceana Maya Aires
name: Machado, Rafael Henrique Szymanski
name: da Cunha Amaral, Roberto Kepler
name: Reinert, Tomás
name: Budel, Vinicius Milani
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Cancer
Science Policy
Hematology
Computational Biology

description: Additional file 6: Table 6.1. Comparison between the panelists’ decision-making regarding the questions related to diagnosis prior to and following brainstorming. Table S6.2. Comparison between the panelists’ decision-making regarding the questions related to surgery prior to and following brainstorming.
A Novel Induction Heater for Sintering Metal Compacts with a Hybrid Material Extrusion Device
Creators: name: Vilchez, Neils
name: Ortega Varela De Seijas, Manuel
name: Bardenhagen, Andreas
name: Rohr, Thomas
name: Stoll, Enrico
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Cohen–Coon
subject: induction
subject: inverter
subject: monitoring
subject: PID control
subject: sintering

description: The traditional sintering of metallic components shaped via Material Extrusion Additive Manufacturing (MEAM) is a time-consuming process that involves sophisticated energy-intensive heating systems. This work describes a novel induction heater capable of efficiently tailoring temperature profiles to densify MEAM powder compacts. In situ sintering within the same device is achieved indirectly by heating a graphite crucible, whereby the heater is based on an inverter with a half-bridge topology using the Zero-Voltage Switching (ZVS) technique. The system comprises a bank of capacitors that, in conjunction with a work coil, form a parallel-topology resonant circuit. This design allows the inverter to be used as a current amplifier, thereby increasing its efficiency to deliver an output power of up to 5 kW. The device operates at a 62.86 kHz resonant frequency, achieving a 2.01 mm penetration depth and a 1365.7 °C crucible temperature with only 1.313 kW of consumption, providing an increase in efficiency compared to other low-cost systems. Equipped with a feedback circuit, it offers five distinct control techniques that enable the self-tuning of the crucible temperature. The results indicate that the Cohen–Coon tuning method is more robust compared to the Ziegler–Nichols, damped, no overshoot, and mixed techniques. Sintering with this novel induction heater provides an alternative method for reducing the processing times for MEAM geometries, paving the way for increased efficiency and reduced energy consumption. Circuit diagrams, simulations, and experimental data on the temperature, time, and output voltage are provided in this article.
Additional file 1 of Intraoperative electron radiotherapy in early invasive ductal breast cancer: 6-year median follow-up results of a prospective monocentric registry
Creators: name: Philippson, Catherine
name: Larsen, Samuel
name: Simon, Stéphane
name: Vandekerkhove, Christophe
name: De Caluwe, Alex
name: Van Gestel, Dirk
name: Chintinne, Marie
name: Veys, Isabelle
name: De Neubourg, Filip
name: Noterman, Danièle
name: Roman, Mirela
name: Nogaret, Jean-Marie
name: Desmet, Antoine
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1. Supplementary information on the surgical and radiotherapy techniques.
QuickMMCTest - Quick Multiple Monte Carlo Testing
Creators: name: Gandy, Axel
name: Hahn, Georg
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Multiple hypothesis testing is widely used to evaluate scientific studies involving statistical tests. However, for many of these tests, p-values are not available and are thus often approximated using Monte Carlo tests such as permutation tests or bootstrap tests. This article presents a simple algorithm based on Thompson Sampling to test multiple hypotheses. It works with arbitrary multiple testing procedures, in particular with step-up and step-down procedures. Its main feature is to sequentially allocate Monte Carlo effort, generating more Monte Carlo samples for tests whose decisions are so far less certain. A simulation study demonstrates that for a low computational effort, the new approach yields a higher power and a higher degree of reproducibility of its results than previously suggested methods.
Robust Extraction of Thermal Observables from State Sampling and Real-Time Dynamics on Quantum Computers
Creators: name: Ghanem, Khaldoon
name: Schuckert, Alexander
name: Dreyer, Henrik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Simulating properties of quantum materials is one of the most promising applications of quantum computation, both near- and long-term. While real-time dynamics can be straightforwardly implemented, the finite temperature ensemble involves non-unitary operators that render an implementation on a near-term quantum computer extremely challenging. Recently, [Lu, Bañuls and Cirac, PRX Quantum 2, 020321 (2021)] suggested a "time-series quantum Monte Carlo method" which circumvents this problem by extracting finite temperature properties from real-time simulations via Wick's rotation and Monte Carlo sampling of easily preparable states. In this paper, we address the challenges associated with the practical applications of this method, using the two-dimensional transverse field Ising model as a testbed. We demonstrate that estimating Boltzmann weights via Wick's rotation is very sensitive to time-domain truncation and statistical shot noise. To alleviate this problem, we introduce a technique that imposes constraints on the density of states, most notably its non-negativity, and show that this way, we can reliably extract Boltzmann weights from noisy time series. In addition, we show how to reduce the statistical errors of Monte Carlo sampling via a reweighted version of the Wolff cluster algorithm. Our work enables the implementation of the time-series algorithm on present-day quantum computers to study finite temperature properties of many-body quantum systems.
description: 16 pages, 22 figures
Asymmetry effects on the phases of RKKY-coupled two-impurity Kondo systems
Creators: name: Wójcik, Krzysztof P.
name: Kroha, Johann
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a related work [arXiv:2106.07519] we have shown that in the two-impurity Anderson (2iA) model with two hosts coupled by spin exchange in the most symmetric case there are either two phase transitions or none. The phases comprise the conventional Kondo and RKKY regimes and a novel one, interpreted as a Kondo-stabilized, metallic quantum spin liquid (QSL). Here we analyze how various types of asymmetry affect this picture. We demonstrate that the transitions are robust against the coupling and particle-hole asymmetries, provided charge transfer is forbidden. This holds true despite the scattering phase shift at each impurity taking non-universal values. Finally, for an extended model including charge transfer between the hosts and a small Coulomb interaction at the host sites directly coupled to impurities, we show that the presence of charge transfer changes the phase transitions into crossovers. Provided the inter-host hopping is sufficiently small, this leads to qualitatively the same physics at non-zero temperature. The relevance of this model for rare-earth atoms in a metallic host is discussed and potential experimental setups for observing our findings are proposed.
description: 13 pages, 12 figures
Bio-Inspired 4D-Printed Mechanisms with Programmable Morphology
Creators: name: Bhattacharyya, Anurag
name: Kim, Jin-Young
name: Alacoque, Lee R.
name: James, Kai A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Traditional robotic mechanisms contain a series of rigid links connected by rotational joints that provide powered motion, all of which is controlled by a central processor. By contrast, analogous mechanisms found in nature, such as octopus tentacles, contain sensors, actuators, and even neurons distributed throughout the appendage, thereby allowing for motion with superior complexity, fluidity, and reaction time. Smart materials provide a means with which we can mimic these features artificially. These specialized materials undergo shape change in response to changes in their environment. Previous studies have developed material-based actuators that could produce targeted shape changes. Here we extend this capability by introducing a novel computational and experimental method for design and synthesis of material-based morphing mechanisms capable of achieving complex pre-programmed motion. By combining active and passive materials, the algorithm can encode the desired movement into the material distribution of the mechanism. We demonstrate this new capability by de novo design of a 3D printed self-tying knot. This method advances a new paradigm in mechanism design that could enable a new generation of material-driven machines that are lightweight, adaptable, robust to damage, and easily manufacturable by 3D printing.
Additional file 5 of Management of early-stage triple-negative breast cancer: recommendations of a panel of experts from the Brazilian Society of Mastology
Creators: name: Freitas-Junior, Ruffo
name: de Oliveira, Vilmar Marques
name: Frasson, Antonio Luiz
name: Cavalcante, Francisco Pimentel
name: Mansani, Fabio Postiglione
name: Mattar, André
name: Zerwes, Felipe Pereira
name: de Oliveira Freitas, Adriana Magalhães
name: de Souza, Alessandra Borba Anton
name: Damin, Andrea P.
name: dos Santos, Annamaria Massahud Rodrigues
name: Ruiz, Carlos Alberto
name: de Lucena, Clécio Ênio Murta
name: Millen, Eduardo Camargo
name: Bagnoli, Fábio
name: Andrade, Felipe
name: Rodrigues, Frank Lane Braga
name: Facina, Gil
name: Novita, Guilherme
name: Pedrini, Jose Luiz
name: Guará, José Pereira
name: Soares, Leonardo Ribeiro
name: de Nigro Corpa, Marcus Vinicius
name: Passos, Mauro
name: de Lucena Ferreira, Nancy Cristina Ferraz
name: Freitas, Nilceana Maya Aires
name: Machado, Rafael Henrique Szymanski
name: da Cunha Amaral, Roberto Kepler
name: Reinert, Tomás
name: Budel, Vinicius Milani
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Cancer
Science Policy
Hematology
Computational Biology

description: Additional file 5: Table S5. Summary of the consensus among the SBM affiliated breast surgeons.
On the one-endedness of graphs of groups
Creators: name: Touikan, Nicholas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20E06, 20E08, 57M07, 57M60, 57M20

description: We give a technical result that implies a straightforward necessary and sufficient conditions for a graph of groups with virtually cyclic edge groups to be one ended. For arbitrary graphs of groups, we show that if their fundamental group is not one-ended, then we can blow up vertex groups to graphs of groups with simpler vertex and edge groups. As an application, we generalize a theorem of Swarup to decompositions of virtually free groups.
description: Improved exposition. 17 pages, 7 figures. To appear in Pacific J. Math
Additional file 4 of Management of early-stage triple-negative breast cancer: recommendations of a panel of experts from the Brazilian Society of Mastology
Creators: name: Freitas-Junior, Ruffo
name: de Oliveira, Vilmar Marques
name: Frasson, Antonio Luiz
name: Cavalcante, Francisco Pimentel
name: Mansani, Fabio Postiglione
name: Mattar, André
name: Zerwes, Felipe Pereira
name: de Oliveira Freitas, Adriana Magalhães
name: de Souza, Alessandra Borba Anton
name: Damin, Andrea P.
name: dos Santos, Annamaria Massahud Rodrigues
name: Ruiz, Carlos Alberto
name: de Lucena, Clécio Ênio Murta
name: Millen, Eduardo Camargo
name: Bagnoli, Fábio
name: Andrade, Felipe
name: Rodrigues, Frank Lane Braga
name: Facina, Gil
name: Novita, Guilherme
name: Pedrini, Jose Luiz
name: Guará, José Pereira
name: Soares, Leonardo Ribeiro
name: de Nigro Corpa, Marcus Vinicius
name: Passos, Mauro
name: de Lucena Ferreira, Nancy Cristina Ferraz
name: Freitas, Nilceana Maya Aires
name: Machado, Rafael Henrique Szymanski
name: da Cunha Amaral, Roberto Kepler
name: Reinert, Tomás
name: Budel, Vinicius Milani
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Cancer
Science Policy
Hematology
Computational Biology

description: Additional file 4: Table S4. Comparison of the consensus and agreement between the panelists prior to and following brainstorming.
GANs and alternative methods of synthetic noise generation for domain adaption of defect classification of Non-destructive ultrasonic testing
Creators: name: McKnight, Shaun
name: Pierce, S. Gareth
name: Mohseni, Ehsan
name: MacKinnon, Christopher
name: MacLeod, Charles
name: OHare, Tom
name: Loukas, Charalampos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This work provides a solution to the challenge of small amounts of training data in Non-Destructive Ultrasonic Testing for composite components. It was demonstrated that direct simulation alone is ineffective at producing training data that was representative of the experimental domain due to poor noise reconstruction. Therefore, four unique synthetic data generation methods were proposed which use semi-analytical simulated data as a foundation. Each method was evaluated on its classification performance of real experimental images when trained on a Convolutional Neural Network which underwent hyperparameter optimization using a genetic algorithm. The first method introduced task specific modifications to CycleGAN, to learn the mapping from physics-based simulations of defect indications to experimental indications in resulting ultrasound images. The second method was based on combining real experimental defect free images with simulated defect responses. The final two methods fully simulated the noise responses at an image and signal level respectively. The purely simulated data produced a mean classification F1 score of 0.394. However, when trained on the new synthetic datasets, a significant improvement in classification performance on experimental data was realized, with mean classification F1 scores of 0.843, 0.688, 0.629, and 0.738 for the respective approaches.
description: 16 Pages
Constraints on OPF Surrogates for Learning Stable Local Volt/Var Controllers
Creators: name: Yuan, Zhenyi
name: Cavraro, Guido
name: Cortés, Jorge
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We consider the problem of learning local Volt/Var controllers in distribution grids (DGs). Our approach starts from learning separable surrogates that take both local voltages and reactive powers as arguments and predict the reactive power setpoints that approximate optimal power flow (OPF) solutions. We propose an incremental control algorithm and identify two different sets of slope conditions on the local surrogates such that the network is collectively steered toward desired configurations asymptotically. Our results reveal the trade-offs between each set of conditions, with coupled voltage-power slope constraints allowing an arbitrary shape of surrogate functions but risking limitations on exploiting generation capabilities, and reactive power slope constraints taking full advantage of generation capabilities but constraining the shape of surrogate functions. AC power flow simulations on the IEEE 37-bus feeder illustrate their guaranteed stability properties and respective advantages in two DG scenarios.
Ergodic control of multi-class $M/M/N+M$ queues in the Halfin-Whitt regime
Creators: name: Arapostathis, Ari
name: Biswas, Anup
name: Pang, Guodong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We study a dynamic scheduling problem for a multi-class queueing network with a large pool of statistically identical servers. The arrival processes are Poisson, and service times and patience times are assumed to be exponentially distributed and class dependent. The optimization criterion is the expected long time average (ergodic) of a general (nonlinear) running cost function of the queue lengths. We consider this control problem in the Halfin-Whitt (QED) regime, that is, the number of servers $n$ and the total offered load $\mathbf{r}$ scale like $n\approx\mathbf{r}+\hatρ\sqrt{\mathbf{r}}$ for some constant $\hatρ$. This problem was proposed in [Ann. Appl. Probab. 14 (2004) 1084-1134, Section 5.2]. The optimal solution of this control problem can be approximated by that of the corresponding ergodic diffusion control problem in the limit. We introduce a broad class of ergodic control problems for controlled diffusions, which includes a large class of queueing models in the diffusion approximation, and establish a complete characterization of optimality via the study of the associated HJB equation. We also prove the asymptotic convergence of the values for the multi-class queueing control problem to the value of the associated ergodic diffusion control problem. The proof relies on an approximation method by spatial truncation for the ergodic control of diffusion processes, where the Markov policies follow a fixed priority policy outside a fixed compact set.
description: Published at http://dx.doi.org/10.1214/14-AAP1081 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Long Sequence Hopfield Memory
Creators: name: Chaudhry, Hamza Tahir
name: Zavatone-Veth, Jacob A.
name: Krotov, Dmitry
name: Pehlevan, Cengiz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Machine Learning (cs.LG)
subject: Neurons and Cognition (q-bio.NC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Sequence memory is an essential attribute of natural and artificial intelligence that enables agents to encode, store, and retrieve complex sequences of stimuli and actions. Computational models of sequence memory have been proposed where recurrent Hopfield-like neural networks are trained with temporally asymmetric Hebbian rules. However, these networks suffer from limited sequence capacity (maximal length of the stored sequence) due to interference between the memories. Inspired by recent work on Dense Associative Memories, we expand the sequence capacity of these models by introducing a nonlinear interaction term, enhancing separation between the patterns. We derive novel scaling laws for sequence capacity with respect to network size, significantly outperforming existing scaling laws for models based on traditional Hopfield networks, and verify these theoretical results with numerical simulation. Moreover, we introduce a generalized pseudoinverse rule to recall sequences of highly correlated patterns. Finally, we extend this model to store sequences with variable timing between states' transitions and describe a biologically-plausible implementation, with connections to motor neuroscience.
description: NeurIPS 2023 Camera-Ready, 41 pages
Spatial integration and deployment coordination for firm wind generation
Creators: name: Prol, Javier Lopez
name: De Llano Paz, Fernando
name: Silvosa, Anxo Calvo
name: Pfenninger, Stefan
name: Staffell, Iain
Publisher: name: Zenodo
Year: 2023
Subjects: Energy transition, decarbonisation, transmission, variable renewable energy, wind power.

description: Wind power has considerable potential to decarbonise electricity systems due to its low cost and wide availability. However, wind variability limits its penetration. We propose a simple analytical framework to optimise the trade-off between achieving the maximum possible capacity factor (and thus minimum possible levelised cost) with the minimum possible variability (and thus integration costs). This framework is flexible enough to allow for near-optimal analysis, integration of demand, and consideration of additional decision criteria without additional modelling. We find that the intercontinental interconnection between China, Europe and the US with optimised capacity shares across regions could provide a firm generation profile with a capacity factor within the range 15%-40% for 99% of the time. Smaller-scale configurations corresponding to already existing electricity markets can also provide more certain and reliable generation profiles than individual regions in autarky.
Context-Aware Notebook Search in a Jupyter-Based Virtual Research Environment
Creators: name: Li, Na
name: Farshidi, Siamak
name: Bianchi, Riccardo
name: Koulouzis, Spiros
name: Zhao, Zhiming
Publisher: name: Zenodo
Year: 2022
Subjects: computational notebook
Jupyter notebook
notebook search
data science
code discovery
code reuse

description: Computational notebook environments such as the Jupyter play an increasingly important role in data-centric research for prototyping computational experiments, documenting code implementations, and sharing scientific results. Effectively discovering and reusing notebooks available on the web can reduce repetitive work and facilitate scientific innovations. However, general-purpose web search engines (e.g., Google Search) do not explicitly index the contents of notebooks, and notebook repositories (e.g., Kaggle and GitHub) require users to create domain-specific queries based on the metadata in the notebook catalogs, which fail to capture the working contexts in the notebook environment. This poster presents a Context-aware Notebook Search Framework (CANSF) to enable a researcher to seamlessly discover external notebooks based on semantic contexts of the literate programming activities in the Jupyter environment.
description: None
Flopping-mode spin qubit in a Si-MOS quantum dot
Creators: name: Hu, Rui-Zi
name: Ma, Rong-Long
name: Ni, Ming
name: Zhou, Yuan
name: Chu, Ning
name: Liao, Wei-Zhu
name: Kong, Zhen-Zhen
name: Cao, Gang
name: Wang, Gui-Lei
name: Li, Hai-Ou
name: Guo, Guo-Ping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin qubits based on silicon metal-oxide semiconductor (Si-MOS) quantum dots (QDs) are promising platforms for large-scale quantum computers. To control spin qubits in QDs, electric dipole spin resonance (EDSR) has been most commonly used in recent years. By delocalizing an electron across a double quantum dots charge state, flopping-mode EDSR has been realized in Si/SiGe QDs. Here, we demonstrate a flopping-mode spin qubit in a Si-MOS QD via Elzerman single-shot readout. When changing the detuning with a fixed drive power, we achieve s-shape spin resonance frequencies, an order of magnitude improvement in the spin Rabi frequencies, and virtually constant spin dephasing times. Our results offer a route to large-scale spin qubit systems with higher control fidelity in Si-MOS QDs.
description: 5 pages, 4 figures
A degree bound for families of rational curves on surfaces
Creators: name: Lubbes, Niels
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We give an upper bound for the degree of rational curves in a family that covers a given birational ruled surface in projective space. The upper bound is stated in terms of the degree, sectional genus and arithmetic genus of the surface. We introduce an algorithm for constructing examples where the upper bound is tight. As an application of our methods we improve an inequality on lattice polygons.
AA. VV., La Generazione del Concilio. Tra cronica e storia, Ed. AVE, Roma 1986, 120 pp., 225X150.
Creators: name: Neiva, A. Costa
Publisher: name: Theologica
Year: 1994

description: Theologica, v. 29 n. 2 (1994): Santuários marianos | Braga e Viana do Castelo
Additional file 3 of Management of early-stage triple-negative breast cancer: recommendations of a panel of experts from the Brazilian Society of Mastology
Creators: name: Freitas-Junior, Ruffo
name: de Oliveira, Vilmar Marques
name: Frasson, Antonio Luiz
name: Cavalcante, Francisco Pimentel
name: Mansani, Fabio Postiglione
name: Mattar, André
name: Zerwes, Felipe Pereira
name: de Oliveira Freitas, Adriana Magalhães
name: de Souza, Alessandra Borba Anton
name: Damin, Andrea P.
name: dos Santos, Annamaria Massahud Rodrigues
name: Ruiz, Carlos Alberto
name: de Lucena, Clécio Ênio Murta
name: Millen, Eduardo Camargo
name: Bagnoli, Fábio
name: Andrade, Felipe
name: Rodrigues, Frank Lane Braga
name: Facina, Gil
name: Novita, Guilherme
name: Pedrini, Jose Luiz
name: Guará, José Pereira
name: Soares, Leonardo Ribeiro
name: de Nigro Corpa, Marcus Vinicius
name: Passos, Mauro
name: de Lucena Ferreira, Nancy Cristina Ferraz
name: Freitas, Nilceana Maya Aires
name: Machado, Rafael Henrique Szymanski
name: da Cunha Amaral, Roberto Kepler
name: Reinert, Tomás
name: Budel, Vinicius Milani
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Cancer
Science Policy
Hematology
Computational Biology

description: Additional file 3: Table S3. Summary of the consensus among the panelists following brainstorming.
FastPacket: Towards Pre-trained Packets Embedding based on FastText for next-generation NIDS
Creators: name: Jallad, Khloud Al
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: New Attacks are increasingly used by attackers everyday but many of them are not detected by Intrusion Detection Systems as most IDS ignore raw packet information and only care about some basic statistical information extracted from PCAP files. Using networking programs to extract fixed statistical features from packets is good, but may not enough to detect nowadays challenges. We think that it is time to utilize big data and deep learning for automatic dynamic feature extraction from packets. It is time to get inspired by deep learning pre-trained models in computer vision and natural language processing, so security deep learning solutions will have its pre-trained models on big datasets to be used in future researches. In this paper, we proposed a new approach for embedding packets based on character-level embeddings, inspired by FastText success on text data. We called this approach FastPacket. Results are measured on subsets of CIC-IDS-2017 dataset, but we expect promising results on big data pre-trained models. We suggest building pre-trained FastPacket on MAWI big dataset and make it available to community, similar to FastText. To be able to outperform currently used NIDS, to start a new era of packet-level NIDS that can better detect complex attacks.
description: arXiv admin note: text overlap with arXiv:2209.13961
Molecular Dynamics Workflow Decomposition for Hybrid Classic/Quantum Systems
Creators: name: Cranganore, Sandeep Suresh
name: De Maio, Vincenzo
name: Do, Tu Mai Anh
name: Brandic, Ivona
name: Deelman, Ewa
Publisher: name: Zenodo
Year: 2022
Subjects: paper-presentation

description: Since we are entering the Post-Moore Law era and consequently the limit of Von Neumann's architecture, the scientific community is looking for alternatives to satisfy the growing computing power demands of scientific applications. Quantum computing promises to achieve a computational advantage over the classic Von Neumann architecture. However, the limited capabilities of current noisy intermediate-scale quantum (NISQ) devices
 require quantum computers to interoperate with classic systems, forming the so-called hybrid quantum systems. Research on hybrid quantum systems led to the design of Variational Quantum Algorithms, currently the most promising way to move towards quantum advantage. However, the execution time and accuracy of variational quantum algorithms are affected by different hyperparameters, including selected cost functions and parametrized quantum circuits. Consequently, providing developers with methods to select the right set of parameters is of paramount importance. In this work, we provide a formal method for the selection of hyperparameters in variational quantum algorithms, which will support quantum algorithms developers in the design of quantum applications, and evaluate it on a real-world scientific application, showing a reduction of error of up to 31%.
title: Design, synthesis and structural evaluation of peptidomimetics with a defined secondary structure
Creators: name: Delatouche, Régis
Publisher: name: Universität Regensburg
Year: 2009
Subjects: subject: Peptide , Peptidsynthese , Peptid-Bindung , Synthetische Peptide , Cyclopeptide , Piperazindion <2,5-> , Peptidomimetikum , Molekulardesign , , delta amino acid , diketopiperazine , peptidomimetics , unnatural amino acid , secondary structure , gamma butyrolactone
subject: 540 Chemie
subject: 92E99

description: The synthesis of new delta-amino acids based on a gamma-butyrolactone ring was performed and they were inserted into various peptidomimetics for conformational studies. Some non-substituted and substituted butyrolactone building blocks were prepared by various methods. Then, homopeptides as well as mixed peptides were prepared and their secondary structures analysed by various techniques including 2d-NMR, CD spectroscopy and IR in solution. In the second part of this project, some building blocks based on a diketopiperazine scaffold were prepared and inserted into homopolymers and cyclic peptidomimetics for secondary structure evaluation. In addition to these peptides, some potential organocatalysts containing the diketopiperazine scaffold were also prepared.
description: Durchgeführt wurde die Synthese von neuen, auf einen gamma-Butyrolaktonring basierenden, delta-Aminosäuren und deren Einbau in verschiedene Peptidomimetika für Konformationstudien. Einige unsubstituierte sowie funktionalisierte gamma-Butyrolakton Einheiten wurden dargestellt. Anschließend wurden Homo-Peptide und gemischte Peptide dargestellt und deren Sekundärstruktur durch verschiedene Analysetechniken (2D-NMR, CD-Spektroskopie und IR) bestimmt. Im zweiten Teil der Arbeit wurden einige, auf Diketopiperazin Grundgerüst basierende, Bausteine dargestellt und in Homopolymere und zyklische Peptidomimetika eingebaut und deren Sekundärstruktur untersucht. Zudem wurden ein paar potentielle Organokatalysatoren mit Diketopiperazin-Grundgerüst dargestellt.
Local quantum uncertainty of a two-qubit XY Heisenberg model with different Dzyaloshinskii-Moriya couplings
Creators: name: Moqine, Younes
name: Adnane, Brahim
name: Belouad, Abdelhadi
name: Belhouideg, Soufiane
name: Houça, Rachid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This study investigates the local quantum uncertainty (LQU) of a two--qubit Heisenberg XY chain with different directions of Dzyaloshinskii--Moriya (DM) interactions. The DM interaction parameters and coupling coefficient $J$ are demonstrated to be beneficial in managing correlation. The DM interaction's x--axis parameter has more influence on correlation than the DM interaction's z--axis. As a result, adjusting the direction of the DM interaction may be capable of producing a more efficient operation to improve the correlation.
description: 15 pages, 5 figures
C-vectors via $τ$-tilting theory
Creators: name: Fu, Changjian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: Inspired by the tropical duality in cluster algebras, we introduce c-vectors for finite-dimensional algebras via $τ$-tilting theory. Let $A$ be a finite-dimensional algebra over a field $k$. Each c-vector of $A$ can be realized as the (negative) dimension vector of certain indecomposable $A$-module and hence we establish the sign-coherence property of this kind of $c$-vectors. We then study the positive c-vectors for certain classes of finite-dimensional algebras. More precisely, we establish the equalities between the set of positive c-vectors and the set of dimension vectors of exceptional modules for quasitilted algebras and representation-directed algebras respectively. This generalizes the equalitites of c-vectors for acyclic cluster algebras obtained by Chávez. To this end, a short proof for the sign-coherence of c-vectors for skew-symmetric cluster algebras has been given in the appendix.
description: 27pages, references added, corrected some typos
A ship-in-a-bottle quantum gas microscope setup for magnetic mixtures
Creators: name: Sohmen, Maximilian
name: Mark, Manfred J.
name: Greiner, Markus
name: Ferlaino, Francesca
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Quantum gas microscopes are versatile and powerful tools for fundamental science as well as promising candidates for enticing applications such as in quantum simulation or quantum computation. Here we present a quantum gas microscopy setup for experiments with highly magnetic atoms of the lanthanoid elements erbium and dysprosium. Our setup features a non-magnetic, non-conducting, large-working-distance, high-numerical-aperture, in-vacuum microscope objective, mounted inside a glue-free quartz glass cell. The quartz glass cell is enclosed by a compact multi-shell ferromagnetic shield that passively suppresses external magnetic field noise by a factor of more than a thousand. Our setup will enable direct manipulation and probing of the rich quantum many-body physics of dipolar atoms in optical lattices, and bears the potential to put exciting theory proposals -- including exotic magnetic phases and quantum phase transitions -- to an experimental test.
Additional file 2 of Management of early-stage triple-negative breast cancer: recommendations of a panel of experts from the Brazilian Society of Mastology
Creators: name: Freitas-Junior, Ruffo
name: de Oliveira, Vilmar Marques
name: Frasson, Antonio Luiz
name: Cavalcante, Francisco Pimentel
name: Mansani, Fabio Postiglione
name: Mattar, André
name: Zerwes, Felipe Pereira
name: de Oliveira Freitas, Adriana Magalhães
name: de Souza, Alessandra Borba Anton
name: Damin, Andrea P.
name: dos Santos, Annamaria Massahud Rodrigues
name: Ruiz, Carlos Alberto
name: de Lucena, Clécio Ênio Murta
name: Millen, Eduardo Camargo
name: Bagnoli, Fábio
name: Andrade, Felipe
name: Rodrigues, Frank Lane Braga
name: Facina, Gil
name: Novita, Guilherme
name: Pedrini, Jose Luiz
name: Guará, José Pereira
name: Soares, Leonardo Ribeiro
name: de Nigro Corpa, Marcus Vinicius
name: Passos, Mauro
name: de Lucena Ferreira, Nancy Cristina Ferraz
name: Freitas, Nilceana Maya Aires
name: Machado, Rafael Henrique Szymanski
name: da Cunha Amaral, Roberto Kepler
name: Reinert, Tomás
name: Budel, Vinicius Milani
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Cancer
Science Policy
Hematology
Computational Biology

description: Additional file 2: Table S2. Summary of the consensus among the panelists prior to brainstorming.
Star forming filaments in warm dark matter models
Creators: name: Gao, Liang
name: Theuns, Tom
name: Springel, Volker
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We performed a hydrodynamical cosmological simulation of the formation of a Milky Way-like galaxy in a warm dark matter (WDM) cosmology. Smooth and dense filaments, several co-moving mega parsec long, form generically above z 2 in this model. Atomic line cooling allows gas in the centres of these filaments to cool to the base of the cooling function, resulting in a very striking pattern of extended Lyman-limit systems (LLSs). Observations of the correlation function of LLSs might hence provide useful limits on the nature of the dark matter. We argue that the self-shielding of filaments may lead to a thermal instability resulting in star formation. We implement a sub-grid model for this, and find that filaments rather than haloes dominate star formation until z 6. Reionisation decreases the gas density in filaments, and the more usual star formation in haloes dominates below z 6, although star formation in filaments continues until z=2. Fifteen per cent of the stars of the z=0 galaxy formed in filaments. At higher redshift, these stars give galaxies a stringy appearance, which, if observed, might be a strong indication that the dark matter is warm.
description: 8 pages, 7 figures. Accepted to MNRAS. Minor revision apart from adding more comparisons with CDM
Inertial migration of a rigid sphere in three-dimensional Poiseuille flow
Creators: name: Hood, Kaitlyn
name: Lee, Sungyon
name: Roper, Marcus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Inertial lift forces are exploited within inertial microfluidic devices to position, segregate, and sort particles or droplets. However the forces and their focusing positions can currently only be predicted by numerical simulations, making rational device design very difficult. Here we develop theory for the forces on particles in microchannel geometries. We use numerical experiments to dissect the dominant balances within the Navier-Stokes equations and derive an asymptotic model to predict the lateral force on the particle as a function of particle size. Our asymptotic model is valid for a wide array of particle sizes and Reynolds numbers, and allows us to predict how focusing position depends on particle size.
description: submitted to Journal of Fluid Mechanics