cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$U_q\mathfrak{sl}_2$-invariant non-compact boundary conditions for the XXZ spin chain
Creators: name: Chernyak, Dmitry
name: Gainutdinov, Azat M.
name: Saleur, Hubert
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce new $U_q\mathfrak{sl}_2$-invariant boundary conditions for the open XXZ spin chain. For generic values of $q$ we couple the bulk Hamiltonian to an infinite-dimensional Verma module on one or both boundaries of the spin chain, and for $q=e^{\frac{iπ}{p}}$ a $2p$-th root of unity $ - $ to its $p$-dimensional analogue. Both cases are parametrised by a continuous "spin" $α\in\mathbb{C}$. To motivate our construction, we first specialise to $q=i$, where we obtain a modified XX Hamiltonian with unrolled quantum group symmetry, whose spectrum and scaling limit is computed explicitly using free fermions. In the continuum, this model is identified with the $(η,ξ)$ ghost CFT on the upper-half plane with a continuum of conformally invariant boundary conditions on the real axis. The different sectors of the Hamiltonian are identified with irreducible Virasoro representations. Going back to generic $q$ we investigate the algebraic properties of the underlying lattice algebras. We show that if $q^α\notin\pm q^{\mathbb{Z}}$, the new boundary coupling provides a faithful representation of the blob algebra which is Schur-Weyl dual to $U_q\mathfrak{sl}_2$. Then, modifying the boundary conditions on both the left and the right, we obtain a representation of the universal two-boundary Temperley-Lieb algebra. The generators and parameters of these representations are computed explicitly in terms of $q$ and $α$. Finally, we conjecture the general form of the Schur-Weyl duality in this case. This paper is the first in a series where we will study, at all values of the parameters, the spectrum and its continuum limit, the representation content of the relevant lattice algebras and the fusion properties of these new spin chains.
description: 54 pages
Faculty Roundtable Discussion
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 1998
Subjects: Pharmacology
Medical ethics

description: SELECTING INITIAL REGIMENS
MR. FROST (MODERATOR): I want to ask Dr. Saag, the question that I think is probably one of the most frequently asked. What do you start treatment with? Suppose a new patient, with no retroviral history, comes to you with a CD4 count between 400 and 500 and a viral load of 10,000 to 15,000 copies.
DR. SAAG: There is more to consider in initial therapies than just retroviral load and CD4 count. It is also about who are they as a person, how motivated are they, and are they ready to start therapy?
DR. SAAG: Alright. Then in talking to you, I would find out whether you want to be hyperaggressive or whether you want to be more conservative in treatment approach.
The Briot-Bouquet systems and the center families for holomorphic dynamical systems
Creators: name: Rong, Feng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 34C25, 34C45, 34M35, 37C27

description: We give a complete solution to the existence of isochronous center families for holomorphic dynamical systems. The study of center families for n-dimensional holomorphic dynamical systems naturally leads to the study of (n-1)-dimensional Briot-Bouquet systems in the phase space. We first give a detailed study of the Briot-Bouquet systems. Then we show the existence of isochronous center families in the neighborhood of the equilibrium point of three-dimensional systems based on the two-dimensional Briot-Bouquet theory. The same approach works in arbitrary dimensions.
description: 13 pages, to appear in Adv. Math
Distinct roles of presynaptic dopamine receptors in the differential modulation of the intrinsic synapses of medium-spiny neurons in the nucleus accumbens
Creators: name: Mizuno, Takeo
name: Schmauss, Claudia
name: Rayport, Stephen G.
Publisher: name: Columbia University
Year: 2007
Subjects: subject: Nucleus accumbens
subject: Neurosciences--Research
subject: Dopamine--Receptors
subject: Psychiatry
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Cytology

description: Background: In both schizophrenia and addiction, pathological changes in dopamine release appear to induce alterations in the circuitry of the nucleus accumbens that affect coordinated thought and motivation. Dopamine acts principally on medium-spiny GABA neurons, which comprise 95% of accumbens neurons and give rise to the majority of inhibitory synapses in the nucleus. To examine dopamine action at single medium-spiny neuron synapses, we imaged Ca2+ levels in their presynaptic varicosities in the acute brain slice using two-photon microscopy.
Results: Presynaptic Ca2+ rises were differentially modulated by dopamine. The D1/D5 selective agonist SKF81297 was exclusively facilitatory. The D2/D3 selective agonist quinpirole was predominantly inhibitory, but in some instances it was facilitatory. Studies using D2 and D3 receptor knockout mice revealed that quinpirole inhibition was either D2 or D3 receptor-mediated, while facilitation was mainly D3 receptor-mediated. Subsets of varicosities responded to both D1 and D2 agonists, showing that there was significant co-expression of these receptor families in single medium-spiny neurons. Neighboring presynaptic varicosities showed strikingly heterogeneous responses to DA agonists, suggesting that DA receptors may be differentially trafficked to individual varicosities on the same medium-spiny neuron axon.
Conclusion: Dopamine receptors are present on the presynaptic varicosities of medium-spiny neurons, where they potently control GABAergic synaptic transmission. While there is significant coexpression of D1 and D2 family dopamine receptors in individual neurons, at the subcellular level, these receptors appear to be heterogeneously distributed, potentially explaining the considerable controversy regarding dopamine action in the striatum, and in particular the degree of dopamine receptor segregation on these neurons. Assuming that post-receptor signaling is restricted to the microdomains of medium-spiny neuron varicosities, the heterogeneous distribution of dopamine receptors on individual varicosities is likely to encode patterns in striatal information processing.
Work related musculoskeletal disorders among physiotherapists
Creators: name: SHARAN, Deepak
name: MOHANDOSS, Mathankumar
name: RANGANATHAN, Rameshkumar
name: JOSE, Jerrish
name: RAJKUMAR, Joshua Samuel
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: The main aim of the study was to review the current literature in order to know various measurement tools used, ergonomic risk factors and other finding related to work related musculoskeletal disorders (WRMSD) among physiotherapists. A systematic review was done using MEDLINE by the keywords “physiotherapists”, “ergonomics” and “musculoskeletal disorders”. Articles were reviewed by two reviewers and studies which were not adequate and inappropriate were excluded. Prevalence of WRMSD in the selected studies was reported to be more than 80%. Working in rehabilitation centers was associated were not adequate and inappropriate were excluded. Prevalence of WRMSD in the selected with an increased prevalence of lower back or shoulder symptoms, whereas work in out-patient clinics was associated with an increased prevalence of thumb or wrist symptoms.
Experiential Graduate Course Prepares Transdisciplinary Future Leaders to Innovate at the Food-Energy-Water Nexus
Creators: name: Murray, Rianna Teresa
name: Marbach-Ad, Gili
name: McKee, Kelsey
name: Sapkota, Amy Rebecca
Publisher: name: MDPI
Year: 2021
Subjects: graduate education
interdisciplinary
transdisciplinary
food-energy-water nexus
communication
collaboration
program evaluation

description: Food, energy and water (FEW) systems are critically stressed worldwide. These challenges require transformative science, engineering and policy solutions. However, cross-cutting solutions can only arise through transdisciplinary training of our future science and policy leaders. The University of Maryland Global STEWARDS National Science Foundation Research Traineeship seeks to meet these needs. This study assessed a foundational component of the program: a novel, experiential course focused on transdisciplinary training and communication skills. We drew on data from the first two offerings of the course and utilized a mixed-method, multi-informant evaluation that included validated pre–post surveys, individual interviews and focus groups. Paired Mann–Whitney–Wilcoxon tests were used to compare pre- and post-means. After the course, students reported improvements in their ability to identify strengths and weaknesses of multiple FEW nexus disciplines; articulate interplays between FEW systems at multiple scales; explain to peers the most important aspects of their research; and collaborate with scientists outside their field. Students also reported improvements in their oral and written communication skills, along with their ability to critically review others’ work. Our findings demonstrate that this graduate course can serve as an effective model to develop transdisciplinary researchers and communicators through cutting edge, experiential curricular approaches.
A non-interacting Galactic black hole candidate in a binary system with a main-sequence star
Creators: name: Chakrabarti, Sukanya
name: Simon, Joshua D.
name: Craig, Peter A.
name: Reggiani, Henrique
name: Brandt, Timothy D.
name: Guhathakurta, Puragra
name: Dalba, Paul A.
name: Kirby, Evan N.
name: Chang, Philip
name: Hey, Daniel R.
name: Savino, Alessandro
name: Geha, Marla
name: Thompson, Ian B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We describe the discovery of a solar neighborhood (d=468 pc) binary system with a main-sequence sunlike star and a massive non-interacting black hole candidate. The spectral energy distribution (SED) of the visible star is described by a single stellar model. We derive stellar parameters from a high signal-to-noise Magellan/MIKE spectrum, classifying the star as a main-sequence star with $T_{\rm eff} = 5972 \rm K$, $\log{g} = 4.54$, and $M = 0.91$ \msun. The spectrum shows no indication of a second luminous component. To determine the spectroscopic orbit of the binary, we measured radial velocities of this system with the Automated Planet Finder, Magellan, and Keck over four months. We show that the velocity data are consistent with the \textit{Gaia} astrometric orbit and provide independent evidence for a massive dark companion. From a combined fit of our spectroscopic data and the astrometry, we derive a companion mass of $11.39^{+1.51}_{-1.31}$\msun. We conclude that this binary system harbors a massive black hole on an eccentric $(e =0.46 \pm 0.02)$, $185.4 \pm 0.1$ d orbit. These conclusions are independent of \cite{ElBadry2022Disc}, who recently reported the discovery of the same system. A joint fit to all available data (including \cite{ElBadry2022Disc}'s) yields a comparable period solution, but a lower companion mass of $9.32^{+0.22}_{-0.21} M_{\odot}$. Radial velocity fits to all available data produce a unimodal solution for the period that is not possible with either data set alone. The combination of both data sets yields the most accurate orbit currently available.
description: 30 pages, 17 figures, accepted to AAS journals (various changes in response to referee comments)
Hamiltonian analysis for abelian and non-abelian massive theories in three dimensions
Creators: name: Escalante, Alberto
name: Osio, José L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A pure Dirac's method for abelian and non-abelian massive theories in three dimensions is performed. Our analysis is developed on the extended phase space reporting the relevant structure of the theories, namely, the extended action, the extended Hamiltonian, the full structure of the constraints and the counting of degrees of freedom. In addition, we compare our results with those found in the literature.
The decay $η' \to πρ$ in the chiral NJL model
Creators: name: Volkov, M. K.
name: Pivovarov, A. A.
name: Nurlan, K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The branching fraction of the decay $η' \to πρ$ is calculated in the chiral quark NJL model. The decay exists due to the mass difference between $u$- and $d$-quarks leading to $π^{0}-η^{'}$ mixing. Two different approaches are applied: the approximate calculation of this process taking into account the transition $π^{0}-η^{'}$ explicitly without dioganalisation and a more precise approach consisting in the diagonalisation of the singlet and octet states leading to the physical fields $π^{0}$, $η$ and $η^{'}$. The obtained results are in satisfactory agreement with current experimental data.
How to Talk about Books You Have Read
Creators: name: Marcus, Sharon
Publisher: name: Columbia University
Year: 2015
Subjects: Books and reading
Writing
Book reviews
Comparative literature
Communication
Internet

description: I don't do much public writing, but each month I persuade others to do it in my role as the fiction editor in chief of Public Books, a twice- monthly online review that I cofounded with Caitlin Zaloom in 2012. On the first and fifteenth of each month, Public Books publishes six to eight essays about books, nonprint works, the media, the arts, and ideas, written mostly by academics but also by journalists, novelists, activists, and artists. In addition to traditional reviews, we publish roundtables, interviews, visual essays, and Public Picks, our annual lists of best books and films.
Echoing the Lessons of HIV: How to Serve the Millions with Cardiovascular Disease
Creators: name: Rabkin, Miriam
name: Goosby, Eric
name: El-Sadr, Wafaa Mahmoud
Publisher: name: Columbia University
Year: 2014
Subjects: Cardiovascular system--Diseases--Treatment
Health services administration
Public health administration
HIV infections--Treatment
Epidemiology
Public health

description: This article in Scientific American is intended for a lay audience, and describes the ways in which lessons from the scale-up of HIV services in resource-limited settings can inform the design and delivery of programs addressing cardiovascular disease and its risk factors.
Implementing a behavior management approach in the hospital setting for individuals with challenging behaviors during acute traumatic brain injury
Creators: name: Block, Heather
name: Hunter, Sarah C.
name: Bellon, Michelle
name: George, Stacey
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: This study aimed to determine if implementing a clinically pragmatic behavior management approach for challenging behaviors during acute TBI reduces use of restraints, security incidences, acute length of stay admission and cost, thereby improving progress to rehabilitation. This pilot study involved a behavior management group (n = 27), compared with a historical control group (n = 74). The behavior management group received care following the implementation of a behavior management approach for challenging behaviors during acute TBI at two hospitals in South Australia. Fidelity results demonstrated high level of adherence to the implemented behavior management approach. The behavior management group had significant lower use of mechanical restraints (p = 0.03), and significantly lower acute admission costs (p = 0.034). Trends in lower pharmacological restraint usage, lower acute hospital length of stay and time from admission to rehabilitation acceptance were recorded. These pilot results contribute to improving quality of health care but methodological limitations make outcomes difficult to interpret as a direct result of the intervention. Future studies are required to investigate evidence-based behavior management interventions for acute TBI patients using more rigorous knowledge translation implementation designs.
De novo design of potent and resilient hACE2 decoys to neutralize SARS-CoV-2
Creators: name: Clairmont, Nicole S.
name: Lau, Uland Y.
name: Peng, Hong
name: Chen, Alex
name: Barnes, Christopher O.
name: Fuller, Deborah H.
name: Yen, Hui-Ling
name: Lin, Yu-Ru
name: Bjorkman, Pamela J.
name: Castellanos, Javier
name: Yu, Kevin
name: Chen, Jerry
name: Mason, Marsha L.
name: Swanson, Ryan
name: Reneer, Z. Beau
name: Baric, Ralph S.
name: Blancas-Mejia, Luis M.
name: Silva, Daniel-Adriano
name: Linsky, Thomas W.
name: Walkey, Carl D.
name: Josephson-Day, Anna
name: Priya, Tanu
name: Vergara, Renan
name: Nelson, Jorgen W.
name: Hou, Yixuan J.
name: Pong, Avery
name: Berrocal, Tania
name: Esser-Nobis, Katharina
name: Hsiang, Tien-Ying
name: Ross, Ted M.
name: Su, Wen
name: Mitsumoto, Masaya
name: Walker, Matthew J.
name: Gale, Michael
name: Codina, Nuria
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: We developed a de novo protein design strategy to swiftly engineer decoys for neutralizing pathogens that exploit extracellular host proteins to infect the cell. Our pipeline allowed the design, validation, and optimization of de novo hACE2 decoys to neutralize SARS-CoV-2. The best decoy, CTC-445.2, binds with low nanomolar affinity and high specificity to the RBD of the spike protein. Cryo-EM shows that the design is accurate and can simultaneously bind to all three RBDs of a single spike protein. Because the decoy replicates the spike protein target interface in hACE2, it is intrinsically resilient to viral mutational escape. A bivalent decoy, CTC-445.2d, shows ~10-fold improvement in binding. CTC-445.2d potently neutralizes SARS-CoV-2 infection of cells in vitro and a single intranasal prophylactic dose of decoy protected Syrian hamsters from a subsequent lethal SARS-CoV-2 challenge.
Light baryon resonances from a coupled-channel study including $\mathbf{KΣ}$ photoproduction
Creators: name: Rönchen, Deborah
name: Döring, Michael
name: Meißner, Ulf-G.
name: Shen, Chao-Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Jülich-Bonn dynamical coupled-channel approach is extended to include $KΣ$ photoproduction off the proton. Differential cross section and (double) polarization data for $K^+Σ^0$ and $K^0Σ^+$ are analysed simultaneously with the pion- and photon-induced production of $πN$, $ηN$, $KΛ$, and $KΣ$ final states, totaling more than 67,000 data points for center-of-mass energies $W<2.4$ GeV. Based on the fit results the spectrum of $N^*$ and $Δ$ resonances is extracted in terms of pole positions and residues. We discuss the impact of the $γp\to KΣ$ channels in detail and investigate the influence of recent polarization data for $ηp$ photoproduction.
description: Updated to the published version
Density of instantaneous frequencies in the Kuramoto-Sakaguchi model
Creators: name: da Fonseca, Julio D.
name: Leonel, Edson D.
name: Medrano-T, Rene O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We obtain a formula for the statistical distribution of instantaneous frequencies in the Kuramoto-Sakaguchi model. This work is based on the Kuramoto-Sakaguchi's theory of globally coupled phase oscillators, which we review in full detail by discussing its assumptions and showing all steps behind the derivation of its main results. Our formula is a stationary probability density function with a complex mathematical structure, is consistent with numerical simulations and gives a description of the stationary collective states of the Kuramoto-Sakaguchi model.
"From Here to Here"
Creators: name: Konner, Joan
Publisher: name: Columbia University
Year: 1988
Subjects: Journalism--Study and teaching
Konner, Joan
Journalism

description: These are the Inaugural Day Remarks given by Joan Konner, former Dean of the Columbia Graduate School of Journalism, at Columbia University on September 6, 1988, her first day as dean. This speech was then published in Vital Speeches of the Day (55:8) on February 1, 1989.
Monitoring Key Forest Structure Attributes across the Conterminous United States by Integrating GEDI LiDAR Measurements and VIIRS Data
Creators: name: Rishmawi, Khaldoun
name: Huang, Chengquan
name: Zhan, Xiwu
Publisher: name: MDPI
Year: 2021
Subjects: VIIRS-NOAA 20
GEDI Ecosystem LiDAR
vegetation 3D structure
random forest regression models

description: Accurate information on the global distribution and the three-dimensional (3D) structure of Earth’s forests is needed to assess forest biomass stocks and to project the future of the terrestrial Carbon sink. In spite of its importance, the 3D structure of forests continues to be the most crucial information gap in the observational archive. The Global Ecosystem Dynamics Investigation (GEDI) Light Detection and Ranging (LiDAR) sensor is providing an unprecedented near-global sampling of tropical and temperate forest structural properties. The integration of GEDI measurements with spatially-contiguous observations from polar orbiting optical satellite data therefore provides a unique opportunity to produce wall-to-wall maps of forests’ 3D structure. Here, we utilized Visible Infrared Imaging Radiometer Suite (VIIRS) annual metrics data to extrapolate GEDI-derived forest structure attributes into 1-km resolution contiguous maps of tree height (TH), canopy fraction cover (CFC), plant area index (PAI), and foliage height diversity (FHD) for the conterminous US (CONUS). The maps were validated using an independent subset of GEDI data. Validation results for TH (r2 = 0.8; RMSE = 3.35 m), CFC (r2 = 0.79; RMSE = 0.09), PAI (r2 = 0.76; RMSE = 0.41), and FHD (r2 = 0.83; RMSE = 0.25) demonstrated the robustness of VIIRS data for extrapolating GEDI measurements across the nation or even over larger areas. The methodology developed through this study may allow multi-decadal monitoring of changes in multiple forest structural attributes using consistent satellite observations acquired by orbiting and forthcoming VIIRS instruments.
Probing the Statistical Validity of the Ductile-to-Brittle Transition in Metallic Nanowires Using GPU Computing
Creators: name: French, William R.
name: Pervaje, Amulya K.
name: Santos, Andrew P.
name: Iacovella, Christopher R.
name: Cummings, Peter T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We perform a large-scale statistical analysis (> 2000 independent simulations) of the elongation and rupture of gold nanowires, probing the validity and scope of the recently proposed ductile-to-brittle transition that occurs with increasing nanowire length [Wu et. al., Nano Lett., 12, 910-914 (2012)]. To facilitate a high-throughput simulation approach, we implement the second-moment approximation to the tight-binding (TB-SMA) potential within HOOMD-Blue, a molecular dynamics package which runs on massively parallel graphics processing units (GPUs). In a statistical sense, we find that the nanowires obey the ductile-to-brittle model quite well; however, we observe several unexpected features from the simulations that build on our understanding of the ductile-to-brittle transition. First, occasional failure behavior is observed that qualitatively differs from that predicted by the model prediction; this is attributed to stochastic thermal motion of the Au atoms and occurs at temperatures as low as 10 K. In addition, we also find that the ductile-to-brittle model, which was developed using classical dislocation theory, holds for nanowires as small as 3 nm in diameter. Finally, we demonstrate that the nanowire critical length is higher at 298 K relative to 10 K, a result that is not predicted by the ductile-to-brittle model. These results offer practical design strategies for adjusting nanowire failure and structure, and also demonstrate that GPU computing is an excellent tool for studies requiring a large number independent trajectories in order to fully characterize a system's behavior.
description: To appear in Journal of Chemical Theory and Computation; 10 figures, 25 pages
Influence of Magnetic Field Decay on Electron Capture in Magnetars
Creators: name: Zhang, Jie
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The de-excited energy of electron capture (EC) induced by magnetic field decay may be a new source for heating magnetar crust, so we do a quantitative calculation on the EC process near the outer crust and analyze their influence on persistent X-ray radiation of magnetars, adopting the experimental data or the results of theoretical model (including the large-scale shell model and quasi-particle random phase approximation).
description: 3 pages; To be published in the special issue for Variability of Blazars: From Jansky to Fermi(VBJF) in Journal of Astronomy and Astrophysics
“Partial View: Truth in Documentary Filmmaking”
Creators: name: Konner, Joan
Publisher: name: Columbia University
Year: 1990
Subjects: Journalism--Objectivity
Journalism--Philosophy
Journalism--Methodology
Documentary films

description: This is a speech by Joan Konner, former Dean of the Columbia Graduate School of Journalism, given in Riga, Latvia, in September 1990, at the Robert Flaherty Film Festival. She discusses the concept of truth in making documentaries.
RASIPAM: Interactive Pattern Mining of Multivariate Event Sequences in Racket Sports
Creators: name: Wu, Jiang
name: Liu, Dongyu
name: Guo, Ziyang
name: Wu, Yingcai
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Experts in racket sports like tennis and badminton use tactical analysis to gain insight into competitors' playing styles. Many data-driven methods apply pattern mining to racket sports data -- which is often recorded as multivariate event sequences -- to uncover sports tactics. However, tactics obtained in this way are often inconsistent with those deduced by experts through their domain knowledge, which can be confusing to those experts. This work introduces RASIPAM, a RAcket-Sports Interactive PAttern Mining system, which allows experts to incorporate their knowledge into data mining algorithms to discover meaningful tactics interactively. RASIPAM consists of a constraint-based pattern mining algorithm that responds to the analysis demands of experts: Experts provide suggestions for finding tactics in intuitive written language, and these suggestions are translated into constraints to run the algorithm. RASIPAM further introduces a tailored visual interface that allows experts to compare the new tactics with the original ones and decide whether to apply a given adjustment. This interactive workflow iteratively progresses until experts are satisfied with all tactics. We conduct a quantitative experiment to show that our algorithm supports real-time interaction. Two case studies in tennis and in badminton respectively, each involving two domain experts, are conducted to show the effectiveness and usefulness of the system.
Very Low-Density Planets around Kepler-51 Revealed with Transit Timing Variations and an Anomaly Similar to a Planet-Planet Eclipse Event
Creators: name: Masuda, Kento
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an analysis of the transit timing variations (TTVs) in the multi-transiting planetary system around Kepler-51 (KOI-620). This system consists of two confirmed transiting planets, Kepler-51b ($P_{\rm b} = 45.2\,\mathrm{days}$) and Kepler-51c ($P_{\rm c} = 85.3\,\mathrm{days}$), and one transiting planet candidate KOI-620.02 ($P_{02} = 130.2\,\mathrm{days}$), which lie close to a $1:2:3$ resonance chain. Our analysis shows that their TTVs are consistently explained by the three-planet model, and constrains their masses as $M_{\rm b} = 2.1_{-0.8}^{+1.5} M_{\oplus}$ (Kepler-51b), $M_{\rm c} = 4.0 \pm 0.4 M_{\oplus}$ (Kepler-51c), and $M_{02} = 7.6 \pm 1.1 M_{\oplus}$ (KOI-620.02), thus confirming KOI-620.02 as a planet in this system. The masses inferred from the TTVs are rather small compared to the planetary radii based on the stellar density and planet-to-star radius ratios determined from the transit light curves. Combining these estimates, we find that all three planets in this system have densities among the lowest determined, $ρ_p \lesssim 0.05\,{\rm g\,cm^{-3}}$. With this feature, the Kepler-51 system serves as another example of low-density compact multi-transiting planetary systems. We also identify a curious feature in the archived Kepler light curve during the double transit of Kepler-51b and KOI-620.02, which could be explained by their overlapping on the stellar disk (a planet-planet eclipse). If this is really the case, the sky-plane inclination of KOI-620.02's orbit relative to that of Kepler-51b is given by $ΔΩ= -25.3_{-6.8}^{+6.2}\mathrm{deg}$, implying significant misalignment of their orbital planes. This interpretation, however, seems unlikely because such an event that is consistent with all of the observations is found to be exceedingly rare.
description: 9 pages, 4 figures, accepted for publication in ApJ
The Type II-P Supernova 2019mhm and Constraints on Its Progenitor System
Creators: name: Vazquez, J.
name: Kilpatrick, C. D.
name: Dimitriadis, G.
name: Foley, R. J.
name: Piro, A. L.
name: Rest, A.
name: Rojas-Bravo, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present pre- and post-explosion observations of the Type II-P supernova (SN~II-P) 2019mhm located in NGC~6753. Based on optical spectroscopy and photometry, we show that SN\,2019mhm exhibits broad lines of hydrogen with a velocity of $-8500\pm200$~km~s$^{-1}$ and a $111\pm2$~day extended plateau in its luminosity, typical of the Type II-P subclass. We also fit its late-time bolometric light curve and infer that it initially produced a ${}^{56}$Ni mass of $1.3 \times 10^{-2}$~M$_{\odot} \pm 5.5 \times 10^{-4}$~$M_\odot$. Using imaging from the Wide Field Planetary Camera 2 on the {\it Hubble Space Telescope} obtained 19~years before explosion, we aligned to a post-explosion Wide Field Camera 3 image and demonstrate that there is no detected counterpart to the SN to a limit of $>$24.53~mag in F814W, corresponding to an absolute magnitude limit of $M_{\rm F814W} < -7.7$~mag. Comparing to massive-star evolutionary tracks, we determine that the progenitor star had a maximum zero-age main sequence mass $<$17.5~M$_{\odot}$, consistent with other SN~II-P progenitor stars. SN\,2019mhm can be added to the growing population of SNe~II-P with both direct constraints on the brightness of their progenitor stars and well-observed SN properties.
description: 11 pages, 7 figures, updated to match the version ApJ accepted
Synergies between ergoecology and green ergonomics: a contribution towards a sustainability agenda for HFE
Creators: name: LANGE-MORALES, Karen
name: THATCHER, Andrew
name: GARCÍA-ACOSTA, Gabriel
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: This paper analyses two proposals that seek to contribute to sustainability from an HFE perspective: ergoecology and green ergonomics. It presents both approaches, their principles, purposes, and fields of application, thereafter dealing with their context of emergence, and overlaps in purpose, principles, and shared values. The principles of ergoecology are given as a framework for developing analytical or practical actions while the principles of green ergonomics are given as guidelines for proposing concrete interventions. Social responsibility and environmental/ecospheric responsibility are the leading threads of ergoecology and green ergonomics, embedded in several values. Implications of these synergies for HFE are outlined.
Viability of Various Sources to Ignite A2L Refrigerants
Creators: name: Kim, Dennis K.
name: Sunderland, Peter B.
Publisher: name: MDPI
Year: 2020
Subjects: combustion
explosion
fire
flame
flammability
halocarbons

description: Environmental considerations are motivating the adoption of low global warming potential refrigerants. Most of these are mildly flammable, i.e., A2L. Their susceptibility to ignition from various ignition sources is poorly understood, particularly for the stoichiometric and quiescent mixtures that are emphasized here. The viability of fifteen residential ignition sources to ignite four A2L refrigerants is considered. Tests are performed in a windowed chamber with a volume of 26 L. The refrigerants are R-32 (difluoromethane); R-452B (67% R-32, 26% R-1234yf, and 7% pentafluoroethane); R-1234yf (2,3,3,3-tetrafluoropropene); and R-1234ze (1,3,3,3-tetrafluoropropene). Two types of ignition sources are confirmed here to be viable: a resistively heated wire at 740 °C and open flames. When the refrigerant concentration was increased slowly, candle flames and butane flames extinguished before initiating any large deflagrations. Eleven other sources were not viable: a smoldering cigarette, a butane lighter, friction sparks, a plug and receptacle, a light switch, a hand mixer, a cordless drill, a bread toaster, a hair dryer, a hot plate, and a space heater. The difficulty to ignite these refrigerants in air is attributed to their long quenching distances (up to 25 mm). Under some conditions the refrigerants were observed to act as flame suppressants.
A pure Dirac's method for Husain-Kuchar theory
Creators: name: Escalante, Alberto
name: Berra, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A pure Dirac's canonical analysis, defined in the full phase space for the Husain-Kuchar model is discussed in detail. This approach allows us to determine the extended action, the extended Hamiltonian, the complete constraint algebra and the gauge transformations for all variables that occur in the action principle. The complete set of constraints defined on the full phase space allow us to calculate the Dirac algebra structure of the theory and a local weighted measure for the path integral quantization method. Finally, we discuss briefly the necessary mathematical structure to perform the canonical quantization program within the framework of the loop quantum gravity approach.
COVID-19 and mass incarceration: a call for urgent action
Creators: name: Brinkley-Rubinstein, L.
name: Rich, J.D.
name: Mercedes, M.
name: Berk, J.
name: Macmadu, A.
name: Kaplowitz, E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: As of September 23, 2020, the USA had both the highest
number of COVID-19 cases and the largest incarcerated
population in the world. Approximately 2·3 million
people are currently incarcerated in prisons and jails in
the USA. More than 6·5 million individuals are under
daily correctional supervision, which includes probation
and parole, representing 2·6% of the entire US adult
population.
Characterization and Analysis of Extensile Fluidic Artificial Muscles
Creators: name: Garbulinski, Jacek
name: Balasankula, Sai C.
name: Wereley, Norman M.
Publisher: name: MDPI
Year: 2021
Subjects: soft actuator
pneumatic
hydraulic
McKibben actuator
artificial muscle
extensile

description: Extensile fluidic artificial muscles (EFAMs) are soft actuators known for their large ranges of extension, low weight, and blocked forces comparable to those of pneumatic cylinders. EFAMs have yet to be studied in a way that thoroughly focuses on their manufacturing, experimental characterization, and modeling. A fabrication method was developed for production of two EFAMs. The quasi-static axial force response of EFAMs to varying displacement was measured by testing two specimens under isobaric conditions over a pressure range of 103.4–517.1 kPa (15–75 psi) with 103.4 kPa (15 psi) increments. The muscles were characterized by a blocked force of 280 N and a maximum stroke of 98% at 517.1 kPa (75 psi). A force-balance model was used to analyze EFAM response. Prior work employing the force-balance approach used hyper-elastic constitutive models based on polynomial expressions. In this study, these models are validated for EFAMs, and new constitutive models are proposed that better represent the measured stress values of rubber as a function of strain. These constitutive models are compared in terms of accuracy when estimating pressure-dependent stress–strain relationships of the bladder material. The analysis demonstrates that the new hyper-elastic stress models have an error 5% smaller than models previously employed for EFAMs for the same number of coefficients. Finally, the analysis suggests that the new stress functions have smaller errors than the polynomial stress model with the same number of coefficients, guarantee material stability, and are more conservative about the stress values for strains outside of the testing range.
CHANG-ES III: UGC10288 -- An Edge-on Galaxy with a Background Double-lobed Radio Source
Creators: name: Irwin, Judith
name: Krause, Marita
name: English, Jayanne
name: Beck, Rainer
name: Murphy, Eric
name: Wiegert, Theresa
name: Heald, George
name: Walterbos, Rene
name: Rand, Richard J.
name: Porter, Troy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This 3rd paper in the CHANG-ES series shows the first results from our regular data taken with the Karl G. Jansky Very Large Array (JVLA). The edge-on galaxy, UGC 10288, has been observed in the B, C, and D configurations at L-band (1.5 GHz) and in the C and D configurations at C-band (6 GHz) in all polarization products. We show the first spatially resolved images in these bands,the first polarization images, and the first composed image at an intermediate frequency (4.1 GHz) which has been formed from a combination of all data sets. A surprising new result is the presence of a strong, polarized, double-lobed extragalactic radio source ({\it CHANG-ES A}) almost immediately behind the galaxy and perpendicular to its disk. The core of {\it CHANG-ES A} has an optical counterpart at a photometric redshift of $z_{phot}\,=\,0.39$; the southern radio lobe is behind the disk of UGC 10288 and the northern lobe is behind the halo region. This background `probe' has allowed us to do a preliminary Faraday Rotation analysis of the foreground galaxy, putting limits on the regular magnetic field and electron density in the halo of UGC 10288 in regions in which there is no direct detection of a radio continuum halo. We have revised the flux densities of the two sources individually as well as the star formation rate (SFR) for UGC 10288. UGC 10288 would have fallen well below the CHANG-ES flux density cutoff, had it been considered without the brighter contribution of the background source. UGC 10288 shows discrete high-latitude radio continuum features, but it does not have a {\it global} radio continuum halo. The total minimum magnetic field strength at a sample position in the arc is $\sim$ 10 $μ$G. Thus, this galaxy still appears to be able to form substantial high latitude, localized features in spite of its relatively low SFR.
description: 34 pages 11 figures Astronomical Journal, on-line publication date of Nov. 14, 2013
Identification of the fungal fruit rot causal agents of Khiew Sawoey mango of production in Loei province for export
Creators: name: Suwita Saepaisan, Suphasiri Chawengphaophan
Publisher: name: Faculty of Agriculture
Year: 2020
Subjects: fruit rot disease, mango, Botryosphaeriaceae species, molecular technique, production area

description: Khon Kaen Agriculture Journal, 48, 6, 1360-1373
“Is Journalism Losing Its Professional Standards?”
Creators: name: Konner, Joan
Publisher: name: Columbia University
Year: 1995
Subjects: Journalistic ethics
Journalism--Objectivity
Mass media--Moral and ethical aspects
Mass media criticism
Journalism--Corrupt practices
Mass media

description: This is a speech by Joan Konner, former Dean of the Columbia Graduate School of Journalism, given in Hamburg, Germany, on July 3, 1995, at the Bertelsmann Conference on Ethics and Standards—New Rules for Journalism: Assuring Quality Through Self Control and Leadership. As the sole representative of American journalism at the conference, she had the honor of speaking about journalism standards.
Population of rice disease caused by rice nematodes in Phra Nakhon Si Ayutthaya, Thailand
Creators: name: Amornsri Khun-In
Publisher: name: Faculty of Agriculture
Year: 2020
Subjects: rice nematodes, Meloidogyne sp., Hirschmanniella sp. and Helicotylenchus sp.

description: Khon Kaen Agriculture Journal, 48, 6, 1374-1383
Transition Networks in a Cohort of Patients with Congestive Heart Failure: A novel application of informatics methods to inform care coordination
Creators: name: Merrill, Jacqueline A.
name: Sheehan, B. M.
name: Carley, K. M.
name: Stetson, P. D.
Publisher: name: Columbia University
Year: 2015
Subjects: Health services administration
Hospital care
System analysis
Congestive heart failure
Medical care
System theory

description: Background: Unnecessary hospital readmissions are one source of escalating costs that may be reduced through improved care coordination, but how best to design and evaluate coordination programs is poorly understood. Measuring patient flow between service visits could support decisions for coordinating care, particularly for conditions such as congestive heart failure (CHF) which have high morbidity, costs, and hospital readmission rates. Objective: To determine the feasibility of using network analysis to explore patterns of service delivery for patients with CHF in the context of readmissions. Methods: A retrospective cohort study used de-identified records for patients ≥ 18 years with an ICD-9 diagnosis code 428.0–428.9, and service visits between July 2011 and June 2012. Patients were stratified by admission outcome. Traditional and novel network analysis techniques were applied to characterize care patterns. Results: Patients transitioned between services in different order and frequency depending on admission status. Patient-to-service CoUsage networks were diffuse suggesting unstructured flow of patients with no obvious coordination hubs. In service-to-service Transition networks a specialty heart failure service was on the care path to the most other services for never admitted patients, evidence of how specialist care may prevent hospital admissions for some patients. For patients admitted once, transitions expanded for a clinic-based internal medicine service which clinical experts identified as a Patient Centered Medical Home implemented in the first month for which we obtained data. Conclusions: We detected valid patterns consistent with a targeted care initiative, which experts could understand and explain, suggesting the method has utility for understanding coordination. The analysis revealed strong but complex patterns that could not be demonstrated using traditional linear methods alone. Network analysis supports measurement of real world health care service delivery, shows how transitions vary between services based on outcome, and with further development has potential to inform coordination strategies.
Leveraging 3D Model Systems to Understand Viral Interactions with the Respiratory Mucosa
Creators: name: Iverson, Ethan
name: Kaler, Logan
name: Agostino, Eva L.
name: Song, Daniel
name: Duncan, Gregg A.
name: Scull, Margaret A.
Publisher: name: MDPI
Year: 2020
Subjects: 3D model
tissue engineering
mucus
periciliary layer
mucosal barrier
viral infection
microscopy

description: Respiratory viruses remain a significant cause of morbidity and mortality in the human population, underscoring the importance of ongoing basic research into virus–host interactions. However, many critical aspects of infection are difficult, if not impossible, to probe using standard cell lines, 2D culture formats, or even animal models. In vitro systems such as airway epithelial cultures at air–liquid interface, organoids, or ‘on-chip’ technologies allow interrogation in human cells and recapitulate emergent properties of the airway epithelium—the primary target for respiratory virus infection. While some of these models have been used for over thirty years, ongoing advancements in both culture techniques and analytical tools continue to provide new opportunities to investigate airway epithelial biology and viral infection phenotypes in both normal and diseased host backgrounds. Here we review these models and their application to studying respiratory viruses. Furthermore, given the ability of these systems to recapitulate the extracellular microenvironment, we evaluate their potential to serve as a platform for studies specifically addressing viral interactions at the mucosal surface and detail techniques that can be employed to expand our understanding.