cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Twistons in a Sea of Magic
Creators: name: Turkel, Simon
name: Swann, Joshua
name: Zhu, Ziyan
name: Christos, Maine
name: Watanabe, K.
name: Taniguchi, T.
name: Sachdev, Subir
name: Scheurer, Mathias S.
name: Kaxiras, Efthimios
name: Dean, Cory R.
name: Pasupathy, Abhay N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magic angle twisted trilayer graphene (TTG) has recently emerged as a new platform to engineer strongly correlated flat bands. Here, we reveal the structural and electronic properties of TTG using low temperature scanning tunneling microscopy at twist angles for which superconductivity has been observed. Real trilayer samples deviate from their idealized structure due to a strong reconstruction of the moiré lattice, which locks layers into near-magic angle, mirror symmetric domains comparable in size to the superconducting coherence length. The price for this magic relaxation is the introduction of an array of localized twist angle faults, termed twistons. These novel, gate-tunable moiré defects offer a natural explanation for the superconducting dome observed in transport and provide an avenue to probe superconducting pairing mechanisms through disorder tuning.
Constraints on Kerr-Newman black holes from merger-ringdown gravitational-wave observations
Creators: name: Carullo, Gregorio
name: Laghi, Danny
name: Johnson-McDaniel, Nathan K.
name: Del Pozzo, Walter
name: Dias, Oscar J. C.
name: Godazgar, Mahdi
name: Santos, Jorge E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct a template to model the post-merger phase of a binary black hole coalescence in the presence of a remnant $U(1)$ charge. We include the quasi-normal modes typically dominant during a binary black hole coalescence, $(\ell,m,n) = \{(2,2,0), (2,2,1)\}$ and also present analytical fits for the quasinormal mode frequencies of a Kerr-Newman black hole in terms of its spin and charge, here also including the $(3,3,0)$ mode. Aside from astrophysical electric charge, our template can accommodate extensions of the Standard Model, such as a dark photon. Applying the model to LIGO-Virgo detections, we find that we are unable to distinguish between the charged and uncharged hypotheses from a purely post-merger analysis of the current events. However, restricting the mass and spin to values compatible with the analysis of the full signal, we obtain a 90th percentile bound $\bar{q} < 0.33$ on the black hole charge-to-mass ratio, for the most favorable case of GW150914. Under similar assumptions, by simulating a typical loud signal observed by the LIGO-Virgo network at its design sensitivity, we assess that this model can provide a robust measurement of the charge-to-mass ratio only for values $\bar{q} \gtrsim 0.5$; here we also assume that the mode amplitudes are similar to the uncharged case in creating our simulated signal. Lower values, down to $\bar{q} \sim 0.3$, could instead be detected when evaluating the consistency of the pre-merger and post-merger emission.
description: 21 pages, 11 figures, 4 tables. Matches published version
Introduction to classical and quantum integrability
Creators: name: Retore, Ana L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In these lecture notes we aim for a pedagogical introduction to both classical and quantum integrability. Starting from Liouville integrability and passing through Lax pair and r-matrix we discuss the construction of the conserved charges for classical integrable models taking as example the harmonic oscillator. The construction of these charges for 2D integrable field theories is also discussed using a Lax connection and the Sine-Gordon model as example. On the quantum side, the XXZ spin chain is used to explain the systematic construction of the conserved charges starting from a quantum R-matrix, solution of the quantum Yang-Baxter equation. The diagonalization of these charges is performed using the algebraic Bethe ansatz. At the end, the interpretation of the R-matrix as an S-matrix in a scattering process is also presented. These notes were written for the lectures delivered at the school "Integrability, Dualities and Deformations", that ran from 23 to 27 August 2021 in Santiago de Compostela and virtually.
description: v1: These notes were written for the lectures delivered at the school "Integrability, Dualities and Deformations", that ran from 23 to 27 August 2021 in Santiago de Compostela and virtually. 61 pages, 10 figures, v2: I corrected typos, added a few comments and added several references
An Elo-type rating model for players and teams of variable strength
Creators: name: Bertram, Düring
name: Michael, Fischer
name: Marie-Therese, Wolfram
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Analysis of PDEs (math.AP)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The Elo rating system, which was originally proposed by Arpad Elo for chess, has become one of the most important rating systems in sports, economics and gaming nowadays. Its original formulation is based on two-player zero-sum games, but it has been adapted for team sports and other settings. In 2015, Junca and Jabin proposed a kinetic version of the Elo model, and showed that under certain assumptions the ratings do converge towards the players' strength. In this paper we generalise their model to account for variable performance of individual players or teams. We discuss the underlying modelling assumptions, derive the respective formal mean-field model and illustrate the dynamics with computational results.
description: 19 pages, 6 figures
Emergence of solitons from many-body photon bound states in quantum nonlinear media
Creators: name: Calajo, Giuseppe
name: Chang, Darrick E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Solitons are known to occur in the context of atom-light interaction via the well-known semi-classical phenomenon of self-induced transparency (SIT). Separately, in the regime where both light and atoms are fully treated quantum mechanically, quantum few-photon bound states are known to be a ubiquitous phenomenon that arises in different systems such as atoms coupled to chiral or bidirectional waveguides, and in Rydberg atomic media. In the specific case of two-level atoms coupled to a chiral waveguide, a recent analysis based on Bethe ansatz has established that SIT emerges from the quantum realm as a superposition of quantum many-photon bound states. Beyond this case, however, the nature of any connection between the full quantum many-body regime and semi-classical behavior has not been established. Here, we employ a general spin-model formulation of quantum atom-light interfaces to numerically investigate this problem, taking advantage of the fact that this approach readily allows for powerful many-body simulations based on matrix product states (MPS). We first analytically derive the two-photon bound state dispersion relation for a variety of atom-light interfaces, and then proceed to numerically investigate the multi-excitation bound states dynamics. Interestingly, for all the specific systems studied, we find that the large-photon number limit always coincides with the soliton phenomenon of self-induced transparency or immediate generalizations thereof.
description: 20 pages, 11 figures
Table S_1. Literature used to rank the abundance of trophic resources among ecosystems. The last section (biotope typologies) has been used principally to detect natural or anthropogenic pressures influencing the basic patterns of food availability. Reference numbers indicated in Tables 1 and 6 refer to the papers listed here. from Relating trophic resources to community structure: a predictive index of food availability
Creators: name: Zupo, Valerio
name: Alexander, Timothy J.
name: Edgar, Graham J.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: The abundance and the distribution of trophic resources available for consumers influence the productivity and the diversity of natural communities. Nevertheless, assessment of the actual abundance of food items available for individual trophic groups has been constrained by differences in methods and metrics used by various authors. Here we develop an index of food abundance, the framework of which can be adapted for different ecosystems. The relative available food index (RAFI) is computed by considering standard resource conditions of a habitat and the influence of various generalized anthropogenic and natural factors. RAFI was developed using published literature on food abundance and validated by comparison of predictions versus observed trophic resources across various marine sites. RAFI tables here proposed can be applied to a range of marine ecosystems for predictions of the potential abundance of food available for each trophic group, hence permitting exploration of ecological theories by focusing on the deviation from the observed to the expected.
Multidisciplinary approach to acute stroke management : Geneva stroke clinical pathway
Creators: name: Sekoranja, Lucka
Publisher: name: Université de Genève
Year: 2013
Subjects: info:eu-repo/classification/ddc/613
info:eu-repo/classification/ddc/616
Stroke
Stroke unit
Multidisciplinary approach
Thrombolysis
Cardioembolic stroke
Clinical pathway

description: The presenting thesis is divided into three main sections: SECTION I The first section is dedicated to a comprehensive literature review of two major topics concerning stroke: the epidemiology of stroke and its risk factors and the clinical pathway of stroke patient. The epidemiology data are included for understanding the burden of stroke and its consequences in the western and developing countries. The overview of stroke patients‘ clinical pathway organisation details the pre-and in –hospital phases and enlightens the importance of multidisciplinary approach to the stroke patient management. SECTION II In the first part, the Geneva specific stroke itinerary is discussed and fractioned according to time intervals dedicated to each part of the clinical pathway with the accent on the emergency and stroke unit care. All details are graphically presented by personal data. In the second part, the specific local thrombolysis protocol is briefly explained with a detailed personal graphical support. In the third part, the specific role of “neuro-cardiologist” is briefly exposed. In Geneva University Hospital, the emergency, neurology and cardiology departments share the same cardiologist specialised in a stroke; this characteristic is unique among Swiss stroke units. SECTION III In this section, the author's scientific contribution to the field of stroke is included and presented as originally published articles
(Citizen Science) LibOCS BESPOC Implementation
Creators: name: Ignat, Tiberius
name: Lembinen, Liisi
name: Neerut, Lilian
name: Pranckutė, Aistė
name: Rozenberga, Gita
Publisher: name: Zenodo
Year: 2024
Subjects: citizen science
research libraries
open science
public engagement

description: LibOCS project, Multiplier event no. 6 presentations. 

The goal of this workshop was to give an unique insights into the implementation of the BESPOC Model across Baltic universities.  BESPOC stands for Broad Engagement in Science, Point of Contact and follows a LERU recommendation for citizen science. It exceeds the framework of participatory science (also known as citizen science) by expanding into public engagement for researchers and their organisations.

BESPOC represents a holistic, organisation-level approach to participatory science, science-society engagement and research impact. Five Baltic universities started to implement BESPOC as part of LibOCS, an Erasmus+ project.

Two online webinars will unveil this unique experience, as well as another similar one from Belgium. This workshop allowed participants to engage in the dialogue, pose questions, and connect with others passionate about participatory science.

This Multiplier event is LibOCS project  milestone #32. 

LibOCS project is funded from an Erasmus+ KA2 Strategic Partnerships program, project number: 2021-1-EE01-KA220-HED-000031125.
Evolution des indications des diagnostics prénatals de 1999 à 2011 suite à l'introduction du test combiné à Genève
Creators: name: Dahoun, Sophie
Publisher: name: Université de Genève
Year: 2013
Subjects: info:eu-repo/classification/ddc/576.5
Dépistage combiné
Diagnostic prénatal
Age maternel
Inquiétude parentale

description: L'objectif de ce travail était d'analyser l'évolution des indications du caryotype prénatal à l'Hôpital Universitaire de Genève entre 1999 et 2011, afin de déterminer l'impact de l'introduction d'un test de dépistage non invasif sur les caryotypes réalisés en raison d'un âge maternel avancé et/ou d'une inquiétude parentale. Ce test appelé « test combiné du 1er trimestre » est pratiqué depuis 1999. Notre étude rétrospective et descriptive de 13'596 cas référés au laboratoire de génétique chromosomique des Hôpitaux Universitaires de Genève (12'930 amniocentèses et 666 choriocentèses), a évalué les résultats du caryotype selon l'indication à cet examen.
Additional file 16: of Multi-cohort analysis of colorectal cancer metagenome identified altered bacteria across populations and universal bacterial markers
Creators: name: Dai, Zhenwei
name: Coker, Olabisi
name: Nakatsu, Geicho
name: Wu, William
name: Zhao, Liuyang
name: Chen, Zigui
name: Chan, Francis
name: Kristiansen, Karsten
name: Sung, Joseph
name: Wong, Sunny
name: Yu, Jun
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Figure S8. Connectivity of the correlation network between the CRC-depleted bacteria in control samples. (PDF 367Â kb)
Magnitude of innovation code from The magnitude of innovation and its evolution in social animals
Creators: name: Arbilly, Michal
name: Laland, Kevin N.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Matlab code used in the simulations presented in this paper
Exploring Conditional Text Generation for Aspect-Based Sentiment Analysis
Creators: name: Chebolu, Siva Uday Sampreeth
name: Dernoncourt, Franck
name: Lipka, Nedim
name: Solorio, Thamar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Aspect-based sentiment analysis (ABSA) is an NLP task that entails processing user-generated reviews to determine (i) the target being evaluated, (ii) the aspect category to which it belongs, and (iii) the sentiment expressed towards the target and aspect pair. In this article, we propose transforming ABSA into an abstract summary-like conditional text generation task that uses targets, aspects, and polarities to generate auxiliary statements. To demonstrate the efficacy of our task formulation and a proposed system, we fine-tune a pre-trained model for conditional text generation tasks to get new state-of-the-art results on a few restaurant domains and urban neighborhoods domain benchmark datasets.
description: This paper is accepted at the PACLIC35 conference on September 30, 2021. It will be published in November, 2021
EDUEASE: A DESIGN FOR TEACHERS TO MAKE LESSON PLANNING EASY
Creators: name: McLaughlin, Madeline Susanne
Publisher: name: Purdue University Graduate School
Year: 2025
Subjects: classificationCode: 330309
subject: Industrial and product design
classificationCode: 330310
subject: Interaction and experience design

description: This paper explores a potential new design system named EduEase that is meant to assist general education elementary school teachers as they create inclusive and accessible lesson plans for their students, specifically those with specialized learning needs either due to disability or other impairments. The design suggestions propose a combination of digital software and physical products that will utilize AI in order to generate appropriate lesson plans, create new content to be used in the classroom, and make interactive and fun activities for students. The product was developed after lengthy research of interviewing and surveying both teachers and students, and then user testing with both design experts and elementary teachers to assure validity and satisfaction with the product. This paper will detail the methodology in developing the product and the final designs for EduEase.
ESM 4 from Immune responses in hibernating little brown myotis (Myotis lucifugus) with white-nose syndrome
Creators: name: TM Lilley
name: JM Prokkola
name: JS Johnson
name: EJ Rogers
name: S Gronsky
name: A Kurta
name: DM Reeder
name: KA Field
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Table of alternative models for the post-hibernation titer and relative mRNA expression of cytokine genes including post-hibernation SMI and time to euthanasia as covariates. Type II sums of squares were obtained with function Anova from package car, and estimates and standard errors for the main effects with function lm in R. Effects that were not inluded in the final models are shown in parentheses. Significant effects (p<0.05) are shown in bold. No significant effects on Il-4 were found. Ifng expression was below detection level in most individuals.
title: The Effect of Nitrogen Fertilization on Short-Term Fine Root Dynamics in a Barrier Island Dune Community
Creators: name: Hutton, John Walter
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2001

description: Fine root dynamics are an important yet poorly understood component of terrestrial ecosystems. In recent years a number of researchers have focused on fine root dynamics; their work has looked at patterns across one or multiple growing seasons on a scale of monthly measures. The purpose of this study was to add to the overall understanding by looking at fine root dynamics on a shorter temporal scale. Minirhizotron observation tubes were used to assess the effect of nitrogen fertilization on short-term fine root dynamics in a nutrient limited, barrier island dune system. Root length elongation and mortality rates followed expected patterns with soil depth, with the highest values for both occurring in the upper 22 cm. Unexpectedly, soil nutrient analyses did not confirm decreasing nitrogen levels with increasing depth although high variability suggests an inadequate sample size. Total % nitrogen was significantly increased by the fertilization regime and corresponded to significantly higher root elongation and mortality rates. However, mortality rates (0.61 mm cm-2 day-1) greatly exceeded root length elongation rates (0.18 mm cm-2 day-1) in both control and treatment plots. These results support one of the two hypotheses summarized by Hendricks et al. (1993a), namely that fine root turnover rates increase with nitrogen availability. The effect of N fertilization was much more pronounced on mortality rates than on root length elongation rates. This is suggestive of a belowground die back in response to nitrogen fertilization, perhaps associated with a shift in allocation to aboveground production.
Spacing Statistics of Energy Spectra: Random Matrices, Black Hole Thermalization, and Echoes
Creators: name: Saraswat, Krishan
name: Afshordi, Niayesh
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent advances in AdS/CFT holography have suggested that the near-horizon dynamics of black holes can be described by random matrix systems. We study how the energy spectrum of a system with a generic random Hamiltonian matrix affects its early and late time thermalization behaviour using the spectral form factor (which captures the time-dependence of two-point correlation functions). We introduce a simple statistical framework for generating random spectra in terms of the nearest neighbor spacing statistics of energy eigenvalues, enabling us to compute the averaged spectral form factor in a closed form. This helps to easily illustrate how the spectral form factor changes with different choices of nearest neighbor statistics ranging from the Poisson to Wigner surmise statistics. We suggest that it is possible to have late time oscillations in random matrix models involving $β$-ensembles (generalizing classical Gaussian ensembles). We also study the form factor of randomly coupled oscillator systems and show that at weak coupling, such systems exhibit regular decaying oscillations in the spectral form factor making them interesting toy models for gravitational wave echoes. We speculate on the holographic interpretation of a system of coupled oscillators, and suggest that they describe the thermalization behaviour of a black hole geometry with a membrane that cuts off the geometry at the stretched horizon.
description: 60 pages, 22 figures, consistent with published JHEP version
Additional file 1: of Identification of methylation sites and signature genes with prognostic value for luminal breast cancer
Creators: name: Xiao, Bin
name: Chen, Lidan
name: Ke, Yongli
name: Hang, Jianfeng
name: Cao, Ling
name: Zhang, Rong
name: Zhang, Weiyun
name: Liao, Yang
name: Gao, Yang
name: Chen, Jianyun
name: Li, Li
name: Hao, Wenbo
name: Sun, Zhaohui
name: Li, Linhai
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Figure S1. Box plot showing the methylation levels of 14 genes in the control and luminal breast cancer tissues. Blue and orange boxes indicate methylation levels in the control and cancer samples, respectively. (PDF 20 kb)
IRDM: A Generative Diffusion Model for Indoor Radio Map Interpolation.
Creators: name: Qiu, Kehai
name: Bakirtzis, Stefanos
name: Wassell, Ian J
name: Song, Hui
name: Lin, Kan
name: Zhang, Jie
Publisher: name: IEEE
Year: 2023

description: This article proposes a novel methodology for interpolating path-loss radio maps, which are vital for comprehending signal distribution and hence planning indoor wireless networks. The approach employs generative diffusion models and proves to be highly effective in generating accurate radio maps with only a small number of measurements. The experimental outcomes demonstrate an average root-mean-square error of 4.23 dB using only 10 percent of the reference points, highlighting the ability of the generative diffusion model to achieve significant interpolation accuracy in radio map generation.
Paull_2017_tables_figures_text_ESM from Drought and immunity determine the intensity of West Nile virus epidemics and climate change impacts
Creators: name: Paull, Sara H.
name: Horton, Daniel E.
name: Moetasim Ashfaq
name: Deeksha Rastogi
name: Kramer, Laura D.
name: Diffenbaugh, Noah S.
name: A. Marm. Kilpatrick
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Health Care
subject: Diseases
subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Additional tables, figures, methods and discussion detailing effects of immunity, temperature, precipitation, winter freezes and drought on human West Nile virus cases across the United States
Additional file 2: of Identification of methylation sites and signature genes with prognostic value for luminal breast cancer
Creators: name: Xiao, Bin
name: Chen, Lidan
name: Ke, Yongli
name: Hang, Jianfeng
name: Cao, Ling
name: Zhang, Rong
name: Zhang, Weiyun
name: Liao, Yang
name: Gao, Yang
name: Chen, Jianyun
name: Li, Li
name: Hao, Wenbo
name: Sun, Zhaohui
name: Li, Linhai
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Figure S2. Distribution of SOSTDC1 methylation levels in the control and luminal breast cancer tissues. Red and blue points indicate methylation levels in the control and cancer samples, respectively. Black lines indicate the mean methylation levels of the corresponding samples. (PDF 19 kb)
Data and Additional Analyses from A broad-scale comparison of aerobic activity levels in vertebrates: endotherms versus ectotherms
Creators: name: Gillooly, James F.
name: Gomez, Juan Pablo
name: Mavrodiev, Evgeny
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology

description: Differences in the limits and range of aerobic activity levels between endotherms and ectotherms remain poorly understood, though such differences help explain basic differences in species' lifestyles (e.g. movement patterns, feeding modes and interaction rates). We compare the limits and range of aerobic activity in endotherms (birds and mammals) and ectotherms (fishes, reptiles and amphibians) by evaluating the body mass-dependence of VO2 max, aerobic scope and heart mass in a phylogenetic context based on a newly constructed vertebrate supertree. Contrary to previous work, results show no significant differences in the body mass scaling of minimum and maximum oxygen consumption rates with body mass within endotherms or ectotherms. For a given body mass, resting rates and maximum rates were 24-fold and 30-fold lower, respectively, in ectotherms than endotherms. Factorial aerobic scope ranged from five to eight in both groups, with scope in endotherms showing a modest body mass-dependence. Finally, maximum consumption rates and aerobic scope were positively correlated with residual heart mass. Together, these results quantify similarities and differences in the potential for aerobic activity among ectotherms and endotherms from diverse environments. They provide insights into the models and mechanisms that may underlie the body mass-dependence of oxygen consumption.
A caster-wheel-aware MPC-based motion planner for mobile robotics
Creators: name: Arrizabalaga, Jon
name: van Duijkeren, Niels
name: Ryll, Markus
name: Lange, Ralph
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Differential drive mobile robots often use one or more caster wheels for balance. Caster wheels are appreciated for their ability to turn in any direction almost on the spot, allowing the robot to do the same and thereby greatly simplifying the motion planning and control. However, in aligning the caster wheels to the intended direction of motion they produce a so-called bore torque. As a result, additional motor torque is required to move the robot, which may in some cases exceed the motor capacity or compromise the motion planner's accuracy. Instead of taking a decoupled approach, where the navigation and disturbance rejection algorithms are separated, we propose to embed the caster wheel awareness into the motion planner. To do so, we present a caster-wheel-aware term that is compatible with MPC-based control methods, leveraging the existence of caster wheels in the motion planning stage. As a proof of concept, this term is combined with a a model-predictive trajectory tracking controller. Since this method requires knowledge of the caster wheel angle and rolling speed, an observer that estimates these states is also presented. The efficacy of the approach is shown in experiments on an intralogistics robot and compared against a decoupled bore-torque reduction approach and a caster-wheel agnostic controller. Moreover, the experiments show that the presented caster wheel estimator performs sufficiently well and therefore avoids the need for additional sensors.
Exceptional points and pseudo-Hermiticity in real potential scattering
Creators: name: Loran, Farhang
name: Mostafazadeh, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We employ a recently-developed transfer-matrix formulation of scattering theory in two dimensions to study a class of scattering setups modeled by real potentials. The transfer matrix for these potentials is related to the time-evolution operator for an associated pseudo-Hermitian Hamiltonian operator $\widehat{\mathbf{H}}$ which develops an exceptional point for a discrete set of incident wavenumbers. We use the spectral properties of this operator to determine the transfer matrix of these potentials and solve their scattering problem. We apply our general results to explore the scattering of waves by a waveguide of finite length in two dimensions, where the source of the incident wave and the detectors measuring the scattered wave are positioned at spatial infinities while the interior of the waveguide, which is filled with an inactive material, forms a finite rectangular region of the space. The study of this model allows us to elucidate the physical meaning and implications of the presence of the real and complex eigenvalues of $\widehat{\mathbf{H}}$ and its exceptional points. Our results reveal the relevance of the concepts of pseudo-Hermitian operator and exceptional point in the standard quantum mechanics of closed systems where the potentials are required to be real.
description: 26 pages, 3 figures
Increasing decoherence rate of Rydberg polaritons due to accumulating dark Rydberg atoms
Creators: name: Chen, Ko-Tang
name: Kim, Bongjune
name: Su, Chia-Chen
name: Hsiao, Shih-Si
name: Huang, Shou-Jou
name: Liao, Wen-Te
name: Yu, Ite A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We experimentally observed an accumulative type of nonlinear attenuation and distortion of slow light, i.e., Rydberg polaritons, with the Rydberg state $|32D_{5/2}\rangle$ in the weak-interaction regime. The present effect of attenuation and distortion cannot be explained by considering only the dipole-dipole interaction (DDI) between Rydberg atoms in $|32D_{5/2}\rangle$. Our observation can be attributed to the atoms in the dark Rydberg states other than those in the bright Rydberg state, i.e., $|32D_{5/2}\rangle$, driven by the coupling field. The dark Rydberg states are all the possible states, in which the population decaying from $|32D_{5/2}\rangle$ accumulated over time, and they were not driven by the coupling field. Consequently, the DDI between the dark and bright Rydberg atoms increased the decoherence rate of the Rydberg polaritons. We performed three different experiments to verify the above hypothesis, to confirm the existence of the dark Rydberg states, and to measure the decay rate from the bright to dark Rydberg states. In the theoretical model, we included the decay process from the bright to dark Rydberg states and the DDI effect induced by both the bright and dark Rydberg atoms. All the experimental data of slow light taken at various probe Rabi frequencies were in good agreement with the theoretical predictions based on the model. This study pointed out an additional decoherence rate in the Rydberg-EIT effect, and provides a better understanding of the Rydberg-polariton system.
Zimmermann et al Proc B 2017 - Electronic supplementary material from Adaptive shaping of the behavioural and neuroendocrine phenotype during adolescence
Creators: name: Zimmermann, Tobias D.
name: Kaiser, Sylvia
name: Hennessy, Michael B.
name: Sachser, Norbert
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: 60801 Animal Behaviour

description: Supporting information on methods and results
The ESM give the working needed to derive the recurrence equations linking the genotype frequencies in successive generations, and Fig. A1 which shows how the effects of selection can be visualised. from Genetic polymorphisms between altruism and selfishness close to the Hamilton threshold rb = c
Creators: name: Sibly, Richard M.
name: Curnow, Robert N.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: 60801 Animal Behaviour
subject: 10202 Biological Mathematics
subject: FOS: Mathematics

description: Genes that in certain conditions make their carriers altruistic are being identified, and altruism and selfishness have shown to be heritable in man. This raises the possibility that genetic polymorphisms for altruism/selfishness exist in man and other animals. Here we characterize some of the conditions in which genetic polymorphisms may occur. We show for dominant or recessive alleles how the positions of stable equilibria depend on the benefit to the recipient, b, and the cost to the altruist, c, for diploid altruists helping half or full sibs, and haplodiploid altruists helping sisters. Stable polymorphisms always occur close to the Hamilton threshold rb = c. The position of the stable equilibrium moves away 0 or 1 with both increases in c, the cost paid by the altruist, and increasing divergence from the Hamilton threshold, and alleles for selfishness can reach frequencies around 50%. We evaluate quantitative estimates of b, c and r from field studies in the light of these predictions, but the values do not fall in the regions where genetic polymorphisms are expected. Nevertheless, it will be interesting to see as genes for altruism are discovered whether they are accompanied by alternate alleles for selfishness.
$γ$-Metrics in Higher Dimensions
Creators: name: Hajibarat, Arash
name: Mirza, Behrouz
name: Azizallahi, Alireza
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce five and higher dimensional $γ$-metrics. The higher dimensional metrics are exact solutions of the vacuum field equations and represent new types of singularities. For dimensions $d>5$ we have obtained $γ$-metrics in flat coordinates. We obtain singularities of metrics and for a better understanding of geometrical and physical properties of the five dimensional metric, stable circular orbits are determined by means of the effective potential. Effect of the deformed parameter ($γ$) on redshift of the $γ$-metric are calculated. Interior solution for the five-dimensional $γ$-metric is also obtained.
description: 9 pages, 1 figure
Table S3 from Competition between apex predators? Brown bears decrease wolf kill rate on two continents
Creators: name: Tallian, Aimee
name: Ordiz, Andrés
name: Metz, Matthew C.
name: Milleret, Cyril
name: Wikenros, Camilla
name: Smith, Douglas W.
name: Stahler, Daniel R.
name: Kindberg, Jonas
name: MacNulty, Daniel R.
name: Wabakken, Petter
name: Swenson, Jon E.
name: Sand, Håkan
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Parameter estimates (β, SE, and 95% CI) from the top models (Fig. 1)
Muon to positron conversion
Creators: name: Lee, MyeongJae
name: MacKenzie, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lepton flavor violation (LFV) has been discovered in the neutrino sector by neutrino oscillation experiments. The minimally extended Standard Model (SM) to include neutrino masses allows LFV in the charged sector (CLFV) at the loop-level, but at rates that are too small to be experimentally observed. Lepton number violation (LNV) is explicitly forbidden even in the minimally extended SM, where the observation of a LNV process would be unambiguous evidence of physics beyond the SM. The search for the LNV and CLFV process $μ^- + N(A,Z) \to e^+ + N'(A,Z-2)$ (referred to as $μ^- \to e^+$ conversion) is a complementary LNV channel to neutrinoless double beta decay searches, sensitive to potential flavor effects in the neutrino mass generation mechanism. A theoretical motivation for $μ^- \to e^+$ conversion is presented along with a review of the status of past $μ^- \to e^+$ conversion experiments and future prospects. Special attention is taken to understanding an uncertain and potentially dominant background for these searches, radiative muon capture, and its potential impacts on current and future $μ^- \to e^+$ searches.
Leading-Color Two-Loop Amplitudes for Four Partons and a W Boson in QCD
Creators: name: Abreu, S.
name: Cordero, F. Febres
name: Ita, H.
name: Klinkert, M.
name: Page, B.
name: Sotnikov, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the leading-color two-loop QCD corrections for the scattering of four partons and a $W$ boson, including its leptonic decay. The amplitudes are assembled from the planar two-loop helicity amplitudes for four partons and a vector boson decaying to a lepton pair, which are also used to determine the planar two-loop amplitudes for four partons and a $Z/γ^*$ boson with a leptonic decay. The analytic expressions are obtained by setting up a dedicated Ansatz and constraining the free parameters from numerical samples obtained within the framework of numerical unitarity. The large linear systems that must be solved to determine the analytic expressions are constructed to be in Vandermonde form. Such systems can be very efficiently solved, bypassing the bottleneck of Gaussian elimination. Our results are expressed in a basis of one-mass pentagon functions, which opens the possibility of their efficient numerical evaluation.
description: 31 pages, 5 figures; v3: matches the published version; analytic expressions at http://www.hep.fsu.edu/~ffebres/W4partons
THE EFFECT OF BRAND ASSOCIATIONS TOWARD BRAND EQUITY AND BRAND LOYALTY AS INTERVENING VARIABLE OF HONDA MOTORCYCLE IN JAMBI CITY
Creators: name: Anaseputri Jamira
name: Octavia, Ade
name: Junaidi Junaidi
Publisher: name: figshare
Year: 2017
Subjects: subject: 150501 Consumer-Oriented Product or Service Development
subject: FOS: Economics and business
subject: 150503 Marketing Management (incl. Strategy and Customer Relations)

description: The purpose of this study is to examine the relationship between brand associations, brand loyalty, and brand equity of Honda motorcycle in Jambi City. Previous researches have shown controversial result on how the relationship of brand associations on brand equity and the role of brand loyalty on it. To analyze brand loyalty as mediating or intervening variable, SEM with SmartPLS software is used to confirm the relationship between variables. There are 100 respondents who are as Honda motorcycle user and decision maker of buying it in Jambi City, that participated in this research by fulfill questionnaires. The results show that brand associations and brand loyalty are important variables which each variable has a strong influence on brand equity, and brand loyalty acts as a mediating variable that strengthen the effect of brand associations to the brand equity. The manager of Honda motorcycle is expected to more focus on resources and marketing activities to build and increase brand associations of Honda which is as basic of purchasing decision and brand loyalty of consumers. This study uses more specifics model of Aaker Brand Equity Model, so that in the future research the complex model can be used, and the researcher can develop with compare more than one category and brand of product or services.
Appendix S1 from Competition between apex predators? Brown bears decrease wolf kill rate on two continents
Creators: name: Tallian, Aimee
name: Ordiz, Andrés
name: Metz, Matthew C.
name: Milleret, Cyril
name: Wikenros, Camilla
name: Smith, Douglas W.
name: Stahler, Daniel R.
name: Kindberg, Jonas
name: MacNulty, Daniel R.
name: Wabakken, Petter
name: Swenson, Jon E.
name: Sand, Håkan
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Cluster searches and carcass cause of death
Additional file 3: of Identification of methylation sites and signature genes with prognostic value for luminal breast cancer
Creators: name: Xiao, Bin
name: Chen, Lidan
name: Ke, Yongli
name: Hang, Jianfeng
name: Cao, Ling
name: Zhang, Rong
name: Zhang, Weiyun
name: Liao, Yang
name: Gao, Yang
name: Chen, Jianyun
name: Li, Li
name: Hao, Wenbo
name: Sun, Zhaohui
name: Li, Linhai
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Figure S3. Distribution of mRNA expression density. Solid and dashed lines indicate the density distribution curve before and after the removal of mRNA with low expression levels, respectively. (PDF 7 kb)
Minding non-collapsibility of odds ratios when recalibrating risk prediction models
Creators: name: Sadatsafavi, Mohsen
name: Tavakoli, Hamid
name: Safari, Abdollah
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In clinical prediction modeling, model updating refers to the practice of modifying a prediction model before it is used in a new setting. In the context of logistic regression for a binary outcome, one of the simplest updating methods is a fixed odds-ratio transformation of predicted risks to improve calibration-in-the-large. Previous authors have proposed equations for calculating this odds-ratio based on the discrepancy between the prevalence in the original and the new population, or between the average of predicted and observed risks. We show that this method fails to consider the non-collapsibility of odds-ratio. Consequently, it under-corrects predicted risks, especially when predicted risks are more dispersed (i.e., for models with good discrimination). We suggest an approximate equation for recovering the conditional odds-ratio from the mean and variance of predicted risks. Brief simulations and a case study show that this approach reduces under-correction, sometimes substantially. R code for implementation is provided.
description: 12 Pages, 1 Figure, 1567 words
WORK BASED LEARNING MODEL IN AN EFFORT TO IMPROVE THE COMPETENCE OF VOCATIONAL STUDENT GRADUATES IN SYSTEMATIC LITERATURE REVIEWS
Creators: name: Hijriyantomi Suyuthie
name: Ganefri
name: Asmar Yulastri
name: Nizwardi Jalinus
name: Ambiyar
name: Sukardi
name: Alfajri Yusra
Publisher: name: Zenodo
Year: 2024
Subjects: Work Based Learning, Vocational, Competence.

description: Abstract

The aim of this literature study is to answer the question, "Is the work-based learning model effective in preparing the workforce?" regarding the use of work-based learning models in vocational education. The method used is Systematic literature review. Sources for the literature review come from a number of databases. Databases for journals, including GARUDA, Scopus, ProQuest, World of Science, and Open Access Journal Directory. The results show that the "WBL" model increases students' readiness to face the world of work and has a positive impact on students' motivation and achievement. To help students accept and understand what they are learning, it also gives them the opportunity to investigate job possibilities in the surrounding environment and familiarize themselves with work habits, dress codes, and other professional customs.
New clues on anuran evolution: the oldest record of an extant hyloid clade in the Oligocene of Patagonia
Creators: name: Nicoli, Laura
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Despite the enormous diversity of the extant South American batrachofauna, its fossil record is sparse. Few pre-Neogene anuran remains have been attributed to extant taxa and, although some have been considered neobatrachians their relationships with extant groups are still mostly uncertain. In this context, a series of fossils recently collected in Oligocene sediments of central Patagonia are assigned to Odontophrynidae. This assignation is supported by an exclusive combination of characters, including extensive frontoparietals, in medial contact and deflecting posteriorly, with crescent-shaped posterolateral projections; robust pterygoid anterior ramus, reaching the planum antorbitale, projecting dorsally; notched premaxillary pars palatine; dentate vomers, narrowly separated medially; robust neopalatines, narrowly separated medially, bearing a conspicuous ridge, and with expanded lateral edges. The well-preserved fossil specimens were considered representative of a new genus and species, Chachaiphrynus lynchi. The presence of an Oligocene Odontophrynidae in central Patagonia, about 500 km south from the southern-most extant distribution of the group, would be associated with the more benign climate inferred in this region during the Paleogene. At the same time, this record represents the single pre-Neogene certain record of an extant clade deeply nested in Hyloidea, providing an exceptional high-quality calibration point to temporally frame the anuran phylogeny. http://www.zoobank.org/urn:lsid:zoobank.org:act:AA043DC2-BCA5-4301-8FB0-FEB56B0F4404