cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ERPs reveal an iconic relation between sublexical phonology and affective meaning
Creators: name: Conrad, M.
name: Ullrich, S.
name: Schmidtke, David
name: Kotz, S. A.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Sound symbolism
subject: Visual word recognition
subject: Phonological iconicity
subject: Affective meaning
subject: N400
subject: ERPs
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Classical linguistic theory assumes that formal aspects, like sound, are not internally related to the meaning of words. However, recent research suggests language might code affective meaning such as threat and alert sublexically. Positing affective phonological iconicity as a systematic organization principle of the German lexicon, we calculated sublexical affective values for sub-syllabic phonological word segments from a large-scale affective lexical German database by averaging valence and arousal ratings of all words any phonological segment appears in. We tested word stimuli with either consistent or inconsistent mappings between lexical affective meaning and sublexical affective values (negative-valence/high-arousal vs. neutral-valence/low-arousal) in an EEG visual-lexical-decision task. A mismatch between sublexical and lexical affective values elicited an increased N400 response. These results reveal that systematic affective phonological iconicity – extracted from the lexicon - impacts the extraction of lexical word meaning during reading.
The photon PDF from high-mass Drell Yan data at the LHC
Creators: name: Giuli, F.
name: team, xFitter Developers'
name: :
name: Bertone, V.
name: Britzger, D.
name: Carrazza, S.
name: Cooper-Sarkar, A.
name: Glazov, A.
name: Lohwasser, K.
name: Luszczak, A.
name: Olness, F.
name: Placakyte, R.
name: Radescu, V.
name: Rojo, J.
name: Sadykov, R.
name: Shvydkin, P.
name: Zenaiev, O.
name: Lisovyi, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Achieving the highest precision for theoretical predictions at the LHC requires the calculation of hard-scattering cross-sections that include perturbative QCD corrections up to (N)NNLO and electroweak (EW) corrections up to NLO. Parton distribution functions (PDFs) need to be provided with matching accuracy, which in the case of QED effects involves introducing the photon parton distribution of the proton, $xγ(x,Q^2)$. In this work a determination of the photon PDF from fits to recent ATLAS measurements of high-mass Drell-Yan dilepton production at $\sqrt{s}=8$ TeV is presented. This analysis is based on the xFitter framework, and has required improvements both in the APFEL program, to account for NLO QED effects, and in the aMCfast interface to account for the photon-initiated contributions in the EW calculations within MadGraph5_aMC@NLO. The results are compared with other recent QED fits and determinations of the photon PDF, consistent results are found.
description: 20 pages, 13 figures, to be submitted to JHEP
The "pure-shear" fracture test for viscoelastic elastomers and its revelation on Griffith fracture
Creators: name: Shrimali, Bhavesh
name: Lopez-Pamies, Oscar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Strikingly, "pure-shear" fracture tests have repeatedly shown that fracture nucleation in (common hydrocarbon and other types of) viscoelastic elastomers occurs at a critical stretch that is independent of the stretch rate at which the test is carried out. In this Letter, we demonstrate that this remarkable -- yet overlooked -- experimental finding implies that the Griffith criticality condition that governs nucleation of fracture from large pre-existing cracks in viscoelastic elastomers can be written in fact as an expression not in terms of an elusive loading-history-dependent critical tearing energy Tc, as ordinarily done, but as one exclusively in terms of the intrinsic fracture energy Gc of the elastomer.
Genotoxicity of methyl acrylate and ethyl acrylate and its relationship with glutathione
Creators: name: Oesch, F.
name: Honarvar, N.
name: Fabian, E.
name: Finch, L.
name: Hindle, S.
name: Wiench, K.
name: Landsiedel, Robert
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Methyl acrylate
subject: Ethyl acrylate
subject: Mutagenicity
subject: Glutathione
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Methyl acrylate (MA) and ethyl acrylate (EA) had previously tested positive for mutagenicity in vitro, but in vivo studies were negative. One of the metabolism pathways of alkyl acrylates is conjugation with glutathione. The glutathione availability is restricted in standard in vitro test systems so that they do not reflect the in vivo metabolism in this respect. We investigated whether the addition of glutathione to the in vitro L5178Y/TK+/− mouse lymphoma mutagenicity test prevents alkyl acrylate’s mutagenicity in vitro. We also investigated whether the quantitative relationships support the notion that the GSH supplemented in vitro systems reflect the true in vivo activity. Indeed, glutathione concentrations as low as 1 mM completely negate the mutagenicity of MA and EA in the L5178Y/TK+/− mouse lymphoma mutagenicity test up to the highest concentrations of the two acrylates tested, 35 µg/ml, a higher concentration than that previously found to be mutagenic in this test (14 µg MA/ml and 20 µg EA/ml). 1 mM Glutathione reduced the residual MA and EA at the end of the exposure period in the mutagenicity tests by 96–97%, but in vivo up to 100 mg/kg body weight MA and EA left the glutathione levels in the mouse liver and forestomach completely intact. It is concluded that the in-situ levels of glutathione, 7.55 ± 0.57 and 2.84 ± 0.22 µmol/g mouse liver and forestomach, respectively, can efficiently protect against MA and EA-induced mutagenicity up to the high concentration of 100 mg MA and EA/kg body weight and that the negative in vivo mutagenicity tests on MA and EA reflect the true in vivo situation.
Surface Transport and Quantum Hall Effect in Ambipolar Black Phosphorus Double Quantum Wells
Creators: name: Tran, Son
name: Yang, Jiawei
name: Gillgren, Nathaniel
name: Espiritu, Timothy
name: Shi, Yanmeng
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Moon, Seongphill
name: Baek, Hongwoo
name: Smirnov, Dmitry
name: Bockrath, Marc
name: Chen, Ruoyu
name: Lau, Chun Ning
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Quantum wells constitute one of the most important classes of devices in the study of 2D systems. In a double layer QW, the additional "which-layer" degree of freedom gives rise to celebrated phenomena such as Coulomb drag, Hall drag and exciton condensation. Here we demonstrate facile formation of wide QWs in few-layer black phosphorus devices that host double layers of charge carriers. In contrast to tradition QWs, each 2D layer is ambipolar, and can be tuned into n-doped, p-doped or intrinsic regimes. Fully spin-polarized quantum Hall states are observed on each layer, with enhanced Lande g-factor that is attributed to exchange interactions. Our work opens the door for using 2D semiconductors as ambipolar single, double or wide QWs with unusual properties such as high anisotropy.
Evaluating and Comparing Crowd Simulations: Perspectives from a Crowd Authoring Tool
Creators: name: Silva, Gabriel Fonseca
name: Knob, Paulo Ricardo
name: Montanha, Rubens Halbig
name: Musse, Soraia Raupp
Publisher: name: arXiv
Year: 2024
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Crowd simulation is a research area widely used in diverse fields, including gaming and security, assessing virtual agent movements through metrics like time to reach their goals, speed, trajectories, and densities. This is relevant for security applications, for instance, as different crowd configurations can determine the time people spend in environments trying to evacuate them. In this work, we extend WebCrowds, an authoring tool for crowd simulation, to allow users to build scenarios and evaluate them through a set of metrics. The aim is to provide a quantitative metric that can, based on simulation data, select the best crowd configuration in a certain environment. We conduct experiments to validate our proposed metric in multiple crowd simulation scenarios and perform a comparison with another metric found in the literature. The results show that experts in the domain of crowd scenarios agree with our proposed quantitative metric.
A quantum degenerate Bose-Fermi mixture of $^{41}$K and $^6$Li
Creators: name: Wu, Yu-Ping
name: Yao, Xing-Can
name: Chen, Hao-Ze
name: Liu, Xiang-Pei
name: Wang, Xiao-Qiong
name: Chen, Yu-Ao
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report a new apparatus for the study of two-species quantum degenerate mixture of $^{41}$K and $^6$Li atoms. We develop and combine several advanced cooling techniques to achieve both large atom number and high phase space density of the two-species atom clouds. Furthermore, we build a high-efficiency two-species magnetic transport system to transfer atom clouds from the 3D magneto-optical-trap chamber to a full glass science chamber of extreme high vacuum environment and good optical access. We perform a forced radio-frequency evaporative cooling for $^{41}$K atoms while the $^6$Li atoms are sympathetically cooled in an optically-plugged magnetic trap. Finally, we achieve the simultaneous quantum degeneracy for the $^{41}$K and $^6$Li atoms. The Bose-Einstein condensate of $^{41}$K has 1.4$\times$10$^5$ atoms with a condensate fraction of about 62%, while the degenerate Fermi gas of $^6$Li has a total atom number of 5.4$\times$10$^5$ at 0.25 Fermi temperature.
Rate limits in quantum networks with lossy repeaters
Creators: name: Laurenza, Riccardo
name: Walk, Nathan
name: Eisert, Jens
name: Pirandola, Stefano
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Quantum channels
subject: Quantum networks
subject: Quantum repeaters
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: The derivation of ultimate limits to communication over certain quantum repeater networks have provided extremely valuable benchmarks for assessing near-term quantum communication protocols. However, these bounds are usually derived in the limit of ideal devices and leave questions about the performance of practical implementations unanswered. To address this challenge, we quantify how the presence of loss in repeater stations affect the maximum attainable rates for quantum communication over linear repeater chains and more complex quantum networks. Extending the framework of node splitting, we model the loss introduced at the repeater stations and then prove the corresponding limits. In the linear chain scenario we show that, by increasing the number of repeater stations, the maximum rate cannot overcome a quantity, which solely depends on the loss of a single station. We introduce a way of adapting the standard machinery for obtaining bounds to this realistic scenario. The difference is that whilst ultimate limits for any strategy can be derived given a fixed channel, when the repeaters introduce additional decoherence, then the effective overall channel is itself a function of the chosen repeater strategy (e.g., one-way versus two-way classical communication). Classes of repeater strategies can be analysed using additional modeling and the subsequent bounds can be interpreted as the optimal rate within that class.
AZ Model for Software Development
Creators: name: Mateen, Ahmed
name: Azeem, Muhammad
name: Shafiq, Mohammad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Know a days Computer system become essential and it is most commonly used in every field of life. The computer saves time and use to solve complex and extensive problem quickly in an efficient way. For this purpose software programs are develop to facilitate the works for administrator, offices, banks etc. so Quality is the most important factor as it mostly defines CUSTOMER SATISFACTION which directly related to success of the project so there are many approaches (methodologies) have been developed for this purpose occasionally. The main study of this paper is to propose a new methodology for the development of the software which focuses on the quality improvement of all kind of product. This study will also discuss the features and limitation of the traditional methodologies like waterfall iterative spiral RUP and Agile and show how the new innovative methodology is better than previous one.
description: 4 pages
NASA: Neural Architecture Search and Acceleration for Hardware Inspired Hybrid Networks
Creators: name: Shi, Huihong
name: You, Haoran
name: Zhao, Yang
name: Wang, Zhongfeng
name: Lin, Yingyan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Hardware Architecture (cs.AR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Multiplication is arguably the most cost-dominant operation in modern deep neural networks (DNNs), limiting their achievable efficiency and thus more extensive deployment in resource-constrained applications. To tackle this limitation, pioneering works have developed handcrafted multiplication-free DNNs, which require expert knowledge and time-consuming manual iteration, calling for fast development tools. To this end, we propose a Neural Architecture Search and Acceleration framework dubbed NASA, which enables automated multiplication-reduced DNN development and integrates a dedicated multiplication-reduced accelerator for boosting DNNs' achievable efficiency. Specifically, NASA adopts neural architecture search (NAS) spaces that augment the state-of-the-art one with hardware-inspired multiplication-free operators, such as shift and adder, armed with a novel progressive pretrain strategy (PGP) together with customized training recipes to automatically search for optimal multiplication-reduced DNNs; On top of that, NASA further develops a dedicated accelerator, which advocates a chunk-based template and auto-mapper dedicated for NASA-NAS resulting DNNs to better leverage their algorithmic properties for boosting hardware efficiency. Experimental results and ablation studies consistently validate the advantages of NASA's algorithm-hardware co-design framework in terms of achievable accuracy and efficiency tradeoffs. Codes are available at https://github.com/GATECH-EIC/NASA.
description: Accepted to ICCAD2022
Isling: A Tool for Detecting Integration of Wild-Type Viruses and Clinical Vectors
Creators: name: Scott, Suzanne
name: Hallwirth, Claus V.
name: Hartkopf, Felix
name: Grigson, Susanna
name: Jain, Yatish
name: Alexander, Ian E.
name: Bauer, Denis C.
name: Wilson, Laurence O. W.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: virology
subject: gene therapy
subject: bioinformatics
subject: genotoxicity
subject: cancer
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Detecting viral and vector integration events is a key step when investigating interactions between viral and host genomes. This is relevant in several fields, including virology, cancer research and gene therapy. For example, investigating integrations of wild-type viruses such as human papillomavirus and hepatitis B virus has proven to be crucial for understanding the role of these integrations in cancer. Furthermore, identifying the extent of vector integration is vital for determining the potential for genotoxicity in gene therapies. To address these questions, we developed isling, the first tool specifically designed for identifying viral integrations in both wild-type and vector from next-generation sequencing data. Isling addresses complexities in integration behaviour including integration of fragmented genomes and integration junctions with ambiguous locations in a host or vector genome, and can also flag possible vector recombinations. We show that isling is up to 1.6-fold faster and up to 170% more accurate than other viral integration tools, and performs well on both simulated and real datasets. Isling is therefore an efficient and application-agnostic tool that will enable a broad range of investigations into viral and vector integration. These include comparisons between integrations of wild-type viruses and gene therapy vectors, as well as assessing the genotoxicity of vectors and understanding the role of viruses in cancer.
A new quantization principle from a minimally non time-ordered product
Creators: name: Anselmi, Damiano
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We formulate a new quantization principle for perturbative quantum field theory, based on a minimally non time-ordered product, and show that it gives the theories of physical particles and purely virtual particles. Given a classical Lagrangian, the quantization proceeds as usual, guided by the time-ordered product, up to the common scattering matrix $S$, which satisfies a unitarity or a pseudounitarity equation. The physical scattering matrix $S_{\text{ph}}$ is built from $S$, by gluing $S$ diagrams together into new diagrams, through non time-ordered propagators. We classify the most general way to gain unitarity by means of such operations, and point out that a special solution "minimizes" the time-ordering violation. We show that the scattering matrix $S_{\text{ph}}$ given by this solution coincides with the one obtained by turning the would-be ghosts (and possibly some would-be physical particles) into purely virtual particles (fakeons). We study tricks to descend and ascend in a unique way among diagrams, and illustrate them in several examples: the ascending chain from the bubble to the hexagon, at one loop; the box with diagonal, at two loops; other diagrams, with more loops.
description: 54 pages; 6 figures; v2: JHEP
Synthetic Glyconanoparticles Modulate Innate Immunity but Not the Complement System
Creators: name: Ghosh, Chandradhish
name: Priegue, Patricia
name: Leelayuwapan, Harin
name: Fuchsberger, Felix F.
name: Rademacher, Christoph
name: Seeberger, Peter H.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: gold nanoparticles
subject: oligomannans
subject: innate immunity
subject: immunomodulators
subject: adjuvants
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Nanoparticles that modulate innate immunity can act as vaccine adjuvants and antigen carriers and are promising alternatives to conventional anticancer therapy. Nanoparticles might, upon contact with serum, activate the complement system that might in turn result in clearance and allergic reactions. Herein, we report that ultrasmall glyconanoparticles decorated with nonimmunogenic α-(1–6)-oligomannans trigger an innate immune response without drastically affecting the complement system. These negatively charged glyconanoparticles (10–15 nm) are stable in water and secrete proinflammatory cytokines from macrophages via the NF-κB signaling pathway. The glyconanoparticles can be used as immunomodulators for monotherapy or in combination with drugs and vaccines.
Tools and resources for diachronic lexical semantic analyses: state of the art
Creators: name: Marongiu, Paola
name: Khan, Fahad
name: McGillivray, Barbara
Publisher: name: Zenodo
Year: 2023
Subjects: lexical semantic change

description: This survey outlines the state of the art in lexical semantic annotation of diachronic corpora, including relevant tools and resources for lexical semantic change detection. This work is one of the outputs of the project “A new CLARIN Resource Family for lexical semantic change research”, funded by CLARIN-ERIC through the CLARIN Resource Families project for the period from 1/11/2022 to 30/06/2023.
 Proposing team: Barbara McGillivray (King’s College London) and Fahad Khan (ILC-CNR).
 Research assistant: Paola Marongiu (University of Neuchâtel).
$CP$ violation in $η^{(\prime)}\toπ^+π^-μ^+μ^-$ decays
Creators: name: Zillinger, Maximilian
name: Kubis, Bastian
name: Sánchez-Puertas, Pablo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It has been pointed out recently that a certain set of dimension-6 scalar $P$- and $CP$-violating light-quark-muon operators may be tested in $η$ and $η'$ decays to various final states involving $μ^+μ^-$ pairs, at a level not yet excluded by constraints from electric dipole moments. We here work out the hadronic matrix elements required for the predictions for the decays $η, η' \toπ^+π^-μ^+μ^-$. We relate a new asymmetry in the angular distribution between the dipion and dimuon decay planes to the corresponding Wilson coefficients. Despite the advantage of not requiring the measurement of muon polarization, the projected sensitivities are shown to be moderate due to a combination of small phase space and chiral suppression. Such sensitivity studies are most timely in view of upcoming or planned high-statistics $η^{(\prime)}$ experiments such as the JLab eta factory or REDTOP.
description: 23 pages, 1 figure, 4 tables
Low Dimensional Atomic Norm Representations in Line Spectral Estimation
Creators: name: Da Costa, Maxime Ferreira
name: Dai, Wei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The line spectral estimation problem consists in recovering the frequencies of a complex valued time signal that is assumed to be sparse in the spectral domain from its discrete observations. Unlike the gridding required by the classical compressed sensing framework, line spectral estimation reconstructs signals whose spectral supports lie continuously in the Fourier domain. If recent advances have shown that atomic norm relaxation produces highly robust estimates in this context, the computational cost of this approach remains, however, the major flaw for its application to practical systems. In this work, we aim to bridge the complexity issue by studying the atomic norm minimization problem from low dimensional projection of the signal samples. We derive conditions on the sub-sampling matrix under which the partial atomic norm can be expressed by a low-dimensional semidefinite program. Moreover, we illustrate the tightness of this relaxation by showing that it is possible to recover the original signal in poly-logarithmic time for two specific sub-sampling patterns.
Plan pursuit in the context of daily fruit and vegetable consumption: The importance of cue detection and the execution of the planned behaviour for overall behaviour change
Creators: name: Domke, Antonia
name: Keller, Jan
name: Knoll, Nina
name: Sniehotta, Falko F.
name: Heuse, Silke
name: Wiedemann, Amelie U.
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: fruit and vegetables
subject: action planning
subject: planning effects
subject: cue detection
subject: execution of the planned behaviour
subject: plan pursuit
subject: intensive longitudinal data
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Objectives In action planning interventions, individuals specify and link cues with behavioural responses to implement behaviour change. To date, not much is known about how and how much the detection of the planned cue (entering and identifying the planned situation) and the execution of the planned behaviour (behavioural response exactly as planned) contribute to overall behavioural changes (changes in target behaviour) achieved by individuals. Using data from an intervention on daily fruit and vegetable (FV) action planning, this study aimed to test whether individuals’ cue detection and execution of the planned behaviour are positively related to overall FV intake. Design Secondary data analyses examined diary data of the intervention condition of a randomized controlled trial. Ninety participants (80% female, aged 19–63 years) formed one FV plan and completed a 13-days post-intervention self-report diary assessing daily FV consumption and situational characteristics of each consumed FV serving. Based on these self-reports and participants’ FV plan, day-to-day cue detection and the execution of the planned behaviour were coded. Methods With two-level models, cue detection and the execution of the planned behaviour were examined as between- and within-person predictors of daily FV intake. Results Higher between-person execution of the planned behaviour (+1.68 daily servings), higher-than-usual within-person cue detection (+0.46 daily servings), and higher-than-usual within-person execution of the planned behaviour (+0.29 daily servings) were associated with more overall FV intake. Conclusions Detecting planned cues (within-person) and executing the planned behaviour (between- and within-person) are important for overall FV intake.
Transparent reporting of research-related greenhouse gas emissions through the scientific CO2nduct initiative
Creators: name: Sweke, Ryan
name: Boes, Paul
name: Ng, Nelly
name: Sparaciari, Carlo
name: Eisert, Jens
name: Goihl, Marcel
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Energy science
subject: Energy technology
subject: Physics
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Estimating the greenhouse gas emissions of research-related activities is a critical first step towards the design of mitigation policies and actions. Here we propose and motivate a transparent framework for reporting research-related greenhouse gas emissions, through the inclusion of standardised reporting tables in scientific publications.
Quadratic Lagrange spectrum: I
Creators: name: Lin, Xianzu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J06, 11J70

description: In this paper we prove the existence of Hall's ray for the quadratic Lagrange spectrums of all real quadratic numbers. For a large class of real quadratic numbers, we compute the Hurwitz constants of their quadratic Lagrange spectrums
description: 19pages, comments welcome!
Molecular clouds in the extreme outer Galaxy between $l=34.75^{\circ}$ to $45.25^{\circ}$
Creators: name: Sun, Yan
name: Su, Yang
name: Zhang, Shao-Bo
name: Xu, Ye
name: Chen, Xue-Peng
name: Yang, Ji
name: Jiang, Zhi-Bo
name: Fang, Min
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the result of an unbiased CO survey in Galactic range of 34.75$^{\circ}\leq$l$\leq$ 45.25$^{\circ}$ and -5.25$^{\circ}\leq$b$\leq$ 5.25$^{\circ}$, and velocity range beyond the Outer arm. A total of 168 molecular clouds (MCs) are identified within the Extreme Outer Galaxy~(EOG) region, and 31 of these MCs are associated with 13CO emission. However, none of them show significant C18O emission under current detection limit. The typical size and mass of these MCs are 5~pc and 3$\times$10$^{3}M_{\sun}$, implying the lack of large and massive MCs in the EOG region. Similar to MCs in the outer Galaxy, the velocity dispersions of EOG clouds are also correlated with their sizes, however, are well displaced below the scaling relationship defined by the inner Galaxy MCs. These MCs with a median Galactocentric radius of 12.6 kpc, show very different distributions from those of the MCs in the Outer arm published in our previous paper, while roughly follow the Outer Scutum-Centaurus arm defined by Dame & Thaddeus 2011. This result may provide a robust evidence for the existence of the Outer Scutum-Centaurus arm. The lower limit of the total mass of this segment is about 2.7$\times$10$^5$ $M_{\sun}$, which is about one magnitude lower than that of the Outer arm. The mean thickness of gaseous disk is about 1.45$^{\circ}$ or 450~pc, and the scale height is about 1.27$^{\circ}$ or 400~pc above the $b=0^{\circ}$ plane. The warp traced by CO emission is very obvious in the EOG region and its amplitude is consistent with the predictions by other warp models using different tracers, such as dust, HI and stellar components of our Galaxy.
description: 25 pages, 9 figures, 3 tables; Accepted for publication in ApJS
GILP: An Interactive Tool for Visualizing the Simplex Algorithm
Creators: name: Robbins, Henry W.
name: Gutekunst, Samuel C.
name: Shmoys, David B.
name: Williamson, David P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences
subject: G.2.0; G.4; K.3.0

description: The Simplex algorithm for solving linear programs-one of Computing in Science & Engineering's top 10 most influential algorithms of the 20th century-is an important topic in many algorithms courses. While the Simplex algorithm relies on intuitive geometric ideas, the computationally-involved mechanics of the algorithm can obfuscate a geometric understanding. In this paper, we present gilp, an easy-to-use Simplex algorithm visualization tool designed to explicitly connect the mechanical steps of the algorithm with their geometric interpretation. We provide an extensive library with example visualizations, and our tool allows an instructor to quickly produce custom interactive HTML files for students to experiment with the algorithm (without requiring students to install anything!). The tool can also be used for interactive assignments in Jupyter notebooks, and has been incorporated into a forthcoming Data Science and Decision Making interactive textbook. In this paper, we first describe how the tool fits into the existing literature on algorithm visualizations: how it was designed to facilitate student engagement and instructor adoption, and how it substantially extends existing algorithm visualization tools for Simplex. We then describe the development and usage of the tool, and report feedback from its use in a course with roughly 100 students. Student feedback was overwhelmingly positive, with students finding the tool easy to use: it effectively helped them link the algebraic and geometrical views of the Simplex algorithm and understand its nuances. Finally, gilp is open-source, includes an extension to visualizing linear programming-based branch and bound, and is readily amenable to further extensions.
description: ACM SIGCSE 2023 Manuscript, 12 pages, 6 figures
Observation of surface superstructure induced by systematic vacancies in the topological Dirac semimetal Cd$_{3}$As$_{2}$
Creators: name: Butler, Christopher J.
name: Tseng, Yi
name: Hsing, Cheng-Rong
name: Wu, Yu-Mi
name: Sankar, Raman
name: Wang, Mei-Fang
name: Wei, Ching-Ming
name: Chou, Fang-Cheng
name: Lin, Minn-Tsong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Dirac semimetal phase found in Cd$_{3}$As$_{2}$ is protected by a $C_{4}$ rotational symmetry derived from a corkscrew arrangement of systematic Cd vacancies in its complicated crystal structure. It is therefore surprising that no microscopic observation, direct or indirect, of these systematic vacancies has so far been described. To this end, we revisit the cleaved (112) surface of Cd$_{3}$As$_{2}$ using a combined approach of scanning tunneling microscopy and \textit{ab initio} calculations. We determine the exact position of the (112) plane at which Cd$_{3}$As$_{2}$ naturally cleaves, and describe in detail a structural periodicity found at the reconstructed surface, consistent with that expected to arise from the systematic Cd vacancies. This reconciles the current state of microscopic surface observations with those of crystallographic and theoretical models, and demonstrates that this vacancy superstructure, central to the preservation of the Dirac semimetal phase, survives the cleavage process and retains order at the surface.
description: Supplemental Material included. 16 pages, 7 figures
Average power scaling of THz spintronic emitters efficiently cooled in reflection geometry
Creators: name: Vogel, Tim
name: Omar, Alan
name: Mansourzadeh, Samira
name: Wulf, Frank
name: Martín Sabanés, Natalia
name: Müller, Melanie
name: Seifert, Tom S.
name: Weigel, Alexander
name: Jakob, Gerhard
name: Kampfrath, Tobias
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: THz spintronic emitters
subject: average power scaling
subject: optimization
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Metallic spintronic terahertz (THz) emitters have become well-established for offering ultra-broadband, gapless THz emission in a variety of excitation regimes, in combination with reliable fabrication and excellent scalability. However, so far, their potential for high-average-power excitation to reach strong THz fields at high repetition rates has not been thoroughly investigated. In this article, we explore the power scaling behavior of tri-layer spintronic emitters using an Yb-fiber excitation source, delivering an average power of 18.5 W (7 W incident on the emitter after chopping) at 400 kHz repetition rate, temporally compressed to a pulse duration of 27 fs. We confirm that a reflection geometry with back-side cooling is ideally suited for these emitters in the high-average-power excitation regime. In order to understand limiting mechanisms, we disentangle the effects on THz power generation by average power and pulse energy by varying the repetition rate of the laser. Our results show that the conversion efficiency is predominantly determined by the incident fluence in this high-average-power, high-repetition-rate excitation regime if the emitters are efficiently cooled. Using these findings, we optimize the conversion efficiency and reach highest excitation powers in the back-cooled reflection geometry. Our findings provide guidelines for scaling the power of THz radiation emitted by spintronic emitters to the milliwatt-level by using state-of-the-art femtosecond sources with multi-hundred-Watt average power to reach ultra-broadband, strong-field THz sources with high repetition rate.
Elementary example of energy and momentum of an extended physical system in special relativity
Creators: name: Serafin, Kamil
name: Głazek, Stanisław D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Classical Physics (physics.class-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An instructive paradox concerning classical description of energy and momentum of extended physical systems in special relativity theory is explained using an elementary example of two point-like massive bodies rotating on a circle in their center-of-mass frame of reference, connected by an arbitrarily light and infinitesimally thin string. Namely, from the point of view of the inertial observers who move with respect to the rotating system, the sums of energies and momenta of the two bodies oscillate, instead of being constant in time. This result is understood in terms of the mechanism that binds the bodies: the string contributes to the system total energy and momentum no matter how light it is. Its contribution eliminates the unphysical oscillations from the system total four-momentum. Generality of the relativistic approach, applied here to the rotor example, suggests that in every extended physical system its binding mechanism contributes to its total energy and momentum.
description: 33 pages, 6 figures, to be published in American Journal of Physics http://aapt.scitation.org/journal/ajp , added one reference
Minimal presentations of shifted numerical monoids
Creators: name: Conaway, Rebecca
name: Gotti, Felix
name: Horton, Jesse
name: O'Neill, Christopher
name: Pelayo, Roberto
name: Williams, Mesa
name: Wissman, Brian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: A numerical monoid is an additive submonoid of the non-negative integers. Given a numerical monoid $S$, consider the family of "shifted" monoids $M_n$ obtained by adding $n$ to each generator of $S$. In this paper, we examine minimal relations among the generators of $M_n$ when $n$ is sufficiently large, culminating in a description that is periodic in the shift parameter $n$. We explore several applications to computation, combinatorial commutative algebra, and factorization theory.
description: 15 pages, 2 figures
The lowest excited states of 14C and 14O nuclei within a five-cluster model
Creators: name: Grinyuk, B. E.
name: Piatnytskyi, D. V.
name: Vasilevsky, V. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the ground and the first excited $0^{+}$ states of two mirror nuclei $^{14}$C and $^{14}$O within a five-cluster model (three alpha-particles and two extra nucleons) with the use of high accuracy variational approach with Gaussian bases. The first excited $0^{+}$ state of these nuclei is shown to be connected with a change of the structure of the two-nucleon subsystem moving in the field of the $^{12}$C cluster. The density distributions, electric form factors (both the elastic and transition ones), pair correlation functions, and the momentum distributions of the constituent particles are found. The most probable shapes of five-cluster systems are revealed.
description: 25 pages, 8 figures
Type I Shapovalov wave spacetimes in the Brans-Dicke scalar-tensor theory of gravity
Creators: name: Osetrin, Konstantin
name: Filippov, Altair
name: Kirnos, Ilya
name: Osetrin, Evgeny
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 83C10, 83C35

description: Exact solutions for Shapovalov wave spacetimes of type I in the scalar-tensor theory of gravity of Brans-Dicke are constructed. Shapovalov's wave spacetimes describe gravitational-wave models that allow the separation of wave variables in privileged coordinate systems. In contrast to the general theory of relativity, the vacuum field equations of the Brans-Dicke scalar-tensor theory of gravity lead to exact solutions for type I Shapovalov spaces, which makes it possible to construct observational checks for detecting such wave disturbances. For the models under consideration, equations for the trajectories of test particles are obtained.
description: 12 pages
ChatGPT Kenali Fiturnya, Mitigasi Risikonya, dan Temukan Solusinya
Creators: name: Baharuddin, Baharuddin
Publisher: name: Zenodo
Year: 2023
Subjects: ChatGPT
fitur
risiko
solusi

description: ChatGPT Kenali Fiturnya, Mitigasi Risikonya, dan Temukan Solusinya
description: Disampaikan dalam Forum Indonesia AI Society
Nuclei in Core-Collapse Supernovae Engine
Creators: name: Furusawa, Shun
name: Nagakura, Hiroki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Herein, we review the nuclear equations of state (EOSs) %for core-collapse supernova simulations and the constituent nuclei of core-collapse supernovae (CCSNe) and their roles in CCSN simulations. Various nuclei such as deuterons, iron, and extremely neutron-rich nuclei compose in the central engines of CCSNe. The center of a collapsing core is dominated by neutron-rich heavy nuclei prior to the occurrence of core bounce. Their weak interactions significantly affect the neutrino emission and the size of the produced proto-neutron star. After a core bounce, heavy nuclei are dissolved to protons, neutrons, and light nuclei between the expanding shock wave and the newly formed neutron star (NS). Some of the key components in determining the shock-wave dynamics and supernova explosion of outer envelopes are neutrino interactions of nucleons and light nuclei such as deuterons. An EOS provides the relations between thermodynamical properties and the nuclear composition, and is needed to simulate this explosion. Further investigations on uniform and non-uniform nuclear matter are needed to improve the understanding of the mechanism of CCSNe and the properties of supernova nuclei. The knowledge of the EOS for uniform nuclear matter is being continually improved by a combination of microscopic calculations, terrestrial experiments, and NS observations. With reference to various nuclear experiments and current theories, the finite temperature effects on heavy nuclei, formation of light nuclei in dilute nuclear matter, and transition to uniform nuclear matter should be improved in the model of the EOS for non-uniform nuclear matter.
description: 57 pages, 23 figures, Accepted by Prog. Part. Nucl. Phys
Optimization of Test Case Generation using Genetic Algorithm (GA)
Creators: name: Mateen, Ahmed
name: Nazir, Marriam
name: Awan, Salman Afsar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Software Engineering (cs.SE)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Testing provides means pertaining to assuring software performance. The total aim of software industry is actually to make a certain start associated with high quality software for the end user. However, associated with software testing has quite a few underlying concerns, which are very important and need to pay attention on these issues. These issues are effectively generating, prioritization of test cases, etc. These issues can be overcome by paying attention and focus. Solitary of the greatest Problems in the software testing area is usually how to acquire a great proper set associated with cases to confirm software. Some other strategies and also methodologies are proposed pertaining to shipping care of most of these issues. Genetic Algorithm (GA) belongs to evolutionary algorithms. Evolutionary algorithms have a significant role in the automatic test generation and many researchers are focusing on it. In this study explored software testing related issues by using the GA approach. In addition to right after applying some analysis, better solution produced, that is feasible and reliable. The particular research presents the implementation of GAs because of its generation of optimized test cases. Along these lines, this paper gives proficient system for the optimization of test case generation using genetic algorithm.
description: 9 pages
General Framework for Randomized Benchmarking
Creators: name: Helsen, J.
name: Roth, Ingo
name: Onorati, E.
name: Werner, A. H.
name: Eisert, Jens
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Quantum benchmarking
subject: Quantum computation
subject: Quantum gates
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: Randomized benchmarking refers to a collection of protocols that in the past decade have become central methods for characterizing quantum gates. These protocols aim at efficiently estimating the quality of a set of quantum gates in a way that is resistant to state preparation and measurement errors. Over the years many versions have been developed, however a comprehensive theoretical treatment of randomized benchmarking has been missing. In this work, we develop a rigorous framework of randomized benchmarking general enough to encompass virtually all known protocols as well as novel, more flexible extensions. Overcoming previous limitations on error models and gate sets, this framework allows us, for the first time, to formulate realistic conditions under which we can rigorously guarantee that the output of any randomized benchmarking experiment is well described by a linear combination of matrix exponential decays. We complement this with a detailed analysis of the fitting problem associated with randomized benchmarking data. We introduce modern signal processing techniques to randomized benchmarking, prove analytical sample complexity bounds, and numerically evaluate performance and limitations. In order to reduce the resource demands of this fitting problem, we introduce novel, scalable postprocessing techniques to isolate exponential decays, significantly improving the practical feasibility of a large set of randomized benchmarking protocols. These postprocessing techniques overcome shortcomings in efficiency of several previously proposed methods such as character benchmarking and linear-cross entropy benchmarking. Finally, we discuss, in full generality, how and when randomized benchmarking decay rates can be used to infer quality measures like the average fidelity. On the technical side, our work substantially extends the recently developed Fourier-theoretic perspective on randomized benchmarking by making use of the perturbation theory of invariant subspaces, as well as ideas from signal processing.
An Exploratory PPGIS for the Nuclear Waste Repository Siting Procedure in Germany – a Transdisciplinary Approach to Enable Meaningful Participation?
Creators: name: Schwarz, Lucas
name: Bräuer, Paula
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: nuclear waste
subject: PPGIS
subject: transdisciplinary
subject: dialogue
subject: bottom-up
subject: 300 Sozialwissenschaften::320 Politikwissenschaft::320 Politikwissenschaft

description: Germany's debate on nuclear energy is characterized by a potential for conflict. With the Repository Site Selection Act, a new strategy was adopted for a participatory search process for the best possible repository site for high-level radioactive waste in Germany. To gain insights into how a Public Participatory GIS application (PPGIS) can contribute to this strategy, a transdisciplinary approach was adopted. By involving a citizen group to take part in the research process, we co-designed and addressed three research questions regarding the role of the PPGIS, its usability and ability to enable dialogue. Key findings include the need for guidance on how to interpret the data provided. Although the potential of a PPGIS to support dialogue is recognized, the need for content moderation emerged as a significant challenge. The transdisciplinary approach was useful in capturing multiple viewpoints and providing new insights into how a PPGIS should be designed to maximize its usefulness.