cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Red galaxy overdensities and the varied cluster environments of powerful radio sources with z~1.6
Creators: name: Best, P. N.
name: Lehnert, M. D.
name: Miley, G.
name: Rottgering, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The environments of a complete subsample of 6 of the most powerful radio-loud AGN at redshifts z~1.6 are investigated, using deep RJK imaging to depths of R~26, J~22.4 and K~20.6. An excess of galaxy counts in the K-band is seen across these fields; these are predominantly associated with red galaxies (R-K>4) of magnitudes 17.54) galaxies, suggesting that the morphology-density relation is imprinted into the centres of clusters at a high redshift. (ii) weaker large-scale excesses extending out to between 1 and 1.5 Mpc radius. The presence or absence of galaxy excesses on these two scales, however, differs greatly between the six different fields. The implications of these results for both cluster formation and the nature of high redshift AGN are discussed (abridged).
description: Accepted for publication in MNRAS. LaTeX, 16 pages, plus 12 additional jpeg figures, 6 in colour. A version with all figures in the postscript file is available from http://www.roe.ac.uk/~pnb/eso_clus.ps
Examining differences in achievement of physical activity best practices between urban and rural child care facilities by age
Creators: name: Dinkel, Danae
name: Rech, John
name: Guo, Yage
name: Bice, Matthew
name: Hulse, Emily
name: Behrends, Donnia
name: Burger, Christina
name: Dev, Dipti
Publisher: name: The Health & Fitness Journal of Canada
Year: 2022

description: Background: The Nutrition and Physical activity Self-Assessment in Child Care (Go NAP SACC) is an evidence-based intervention developed to positively impact childhood obesity in early childhood education (ECE) facilities. One focus of Go NAP SACC is the development of physical activity best practices. However, little research has examined differences in achievement of best practices based on age of child and geographic location. Purpose: To examine differences in the achievement of physical activity best practices between urban and rural childcare facilities by age-specific recommendations (infants, toddlers, and preschoolers) and in the overall physical activity environment. Urban (n=207) and rural (n=218) ECE facilities completed the Go NAP SACC process. Scores of the post intervention self- assessment were used for comparison. Data were analyzed using an ANCOVA. Results: A majority of facilities reported exceeding best practices (79.5%). Of the 45 items assessed, significant differences were found for 18 best practices with urban facilities outscoring their rural counterparts on 17 of these items. A comparison by age found that urban facilities reported higher achievement of best practices among infants (60%) in comparison to toddlers (40%) or preschoolers (30%). Discussion: Urban ECE facilities scored significantly higher than their rural counterparts on 40% of the items assessed. Thus, there is a need to develop and identify relevant resources for continued improvement of best practices based on geographical location. Future studies should continue to explore the rural-urban context of physical activity practices across the early childhood age groups to ensure healthy physical development of children. Funding: This project was supported by the Cooperative Agreement Number NU58DP004819, funded by the Centers for Disease Control and Prevention. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the Centers for Disease Control and Prevention or the Department of Health and Human Services. This work was also supported by a Nebraska Department of Health and Human Services Child Care and Development Fund, USDA Nebraska Team Nutrition, and a Title V Maternal and Child Health Block Grant.
description: The Health & Fitness Journal of Canada, Vol. 14 No. 3 (2021): Proceedings from the 8th International Society for Physical Activity and Health Congress
The Meaning and Role of the Colombo Powers in Inter-Asian Relations
Creators: name: Sanjoto, Djoko
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: The postwar period has been a period of drastic changes for the Asian and African countries. For them it has become the dawn of a new era, the beginning of the end of foreign domination and control and the start of a new life. However, after centuries of foreign rule and colonial exploitation, these countries are economically and technologically underdeveloped. Consequently, many problems must be faced such as the undertaking of economic improvements and establishment of educational standards.
Additional file 1 of Auto-oxidation of Ent-beyer-15-en-19-al isolated from the essential oil of the heartwood of Erythroxylum monogynum Roxb.: formation of 15,16-epoxy-ent-beyeran-19-oic acid and other products
Creators: name: T. M. Samantha Gome Tennakoon
name: G. M. Kamal Bandara Gunaherath
name: K. Tuley Dayananda De Silva
name: Chayanika Padumadasa
name: D. Siril Abeywickrama Wijesundara
name: Ajita Mahendra Abeysekera
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table giving the composition of essential oil obtained in Stage 1.
Open Research Europe - Publishing Model & Peer Review Process
Creators: name: Woods, Kelly
Publisher: name: Zenodo
Year: 2021
Subjects: Peer review
ORE
Publishing
Open Science
Scholarly Communication

description: This workshop will be co-organised by LIBER and Open Research Europe (ORE). Open Research Europe is an open access publication platform for the publication of research resulting from Horizon 2020 and Horizon Europe funding in all subject areas. The workshop will explain the peer review model behind the platform which is fully open and transparent as well as invite expert speakers to talk about innovative peer review. Recently, increasing attention has been paid to ways of streamlining the peer review process and applying alternative peer review methods using new technologies and open access models. There are several developments that the world of scientific communication is currently facing in relation to these new processes and methods such as finding a balance between speeding up the process without compromising quality, integration with research evaluation and understanding the role of citizens and machines in peer review. The new developments in the field of Innovative Peer Review can lead to great opportunities for research libraries, especially in the areas of service development, engagement, and training. During the workshop best practices will be shared about new open peer review approaches, with the opportunity to discuss these new developments in a group discussion. The workshop is addressed at research librarians and researchers with and without experience with the ORE platform with an interest in open and innovative peer review. Specifically, research libraries professionals in publishing and editorial units, or managers of advanced repositories and library staff who work on Open Science software, or who are responsible for promoting Open Science in their institutions are invited to join.
Meta-Analysis of Generalized Additive Models in Neuroimaging Studies
Creators: name: Sørensen, Øystein
name: Brandmaier, Andreas M
name: Macià, Dídac
name: Ebmeier, Klaus
name: Ghisletta, Paolo
name: Kievit, Rogier A
name: Mowinckel, Athanasia M
name: Walhovd, Kristine B
name: Westerhausen, Rene
name: Fjell, Anders
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Analyzing data from multiple neuroimaging studies has great potential in terms of increasing statistical power, enabling detection of effects of smaller magnitude than would be possible when analyzing each study separately and also allowing to systematically investigate between-study differences. Restrictions due to privacy or proprietary data as well as more practical concerns can make it hard to share neuroimaging datasets, such that analyzing all data in a common location might be impractical or impossible. Meta-analytic methods provide a way to overcome this issue, by combining aggregated quantities like model parameters or risk ratios. Most meta-analytic tools focus on parametric statistical models, and methods for meta-analyzing semi-parametric models like generalized additive models have not been well developed. Parametric models are often not appropriate in neuroimaging, where for instance age-brain relationships may take forms that are difficult to accurately describe using such models. In this paper we introduce meta-GAM, a method for meta-analysis of generalized additive models which does not require individual participant data, and hence is suitable for increasing statistical power while upholding privacy and other regulatory concerns. We extend previous works by enabling the analysis of multiple model terms as well as multivariate smooth functions. In addition, we show how meta-analytic $p$-values can be computed for smooth terms. The proposed methods are shown to perform well in simulation experiments, and are demonstrated in a real data analysis on hippocampal volume and self-reported sleep quality data from the Lifebrain consortium. We argue that application of meta-GAM is especially beneficial in lifespan neuroscience and imaging genetics. The methods are implemented in an accompanying R package \verb!metagam!, which is also demonstrated.
EOSC Future Core
Creators: name: Wierenga, Klaas
Publisher: name: Zenodo
Year: 2021
Subjects: EOSC
FAIR
Interoperability
Standards
Federation
Co-design

description: The EOSC Future project will develop an environment with interoperable research outputs, including publications and code, as well as access to professional data services and resources such as compute,storage and preservation. It will federate existing research infrastructure in a ‘system of systems’ approach that will support European researchers in managing the entire lifecycle of data: from sharing, managing and exploiting their own data to discovering, re-using and recombining the data sets of others. In particular, the EOSC Future project will support the establishment of the so-called EOSC Core. “The EOSC-Core provides the minimum functionality that is required to enable the federation of data and services across domains and countries. It supports FAIR data principles by providing the means to discover, share, access and reuse data and services. These elements address key technical, cultural and policy decisions of EOSC and they must be maintained over the long term” (SRIA v0.1). This 90-minute workshop will provide an overview of EOSC Future’s plans for the implementation of a fully functional EOSC Core, highlighting how it could support and facilitate the daily work of researchers in the future. After an initial EOSC Future presentation on the EOSC Core, the workshop with continue with a panel discussion focusing on the following questions: What will be the impact of the EOSC Core on national and international research infrastructures? What are the needs and expectations of the research institutions (e.g libraries, repositories, universities, etc.)? What role will the EOSC Core and the standards we adopt play in an international context? The input collected during the workshop will be used by the EOSC Future project to collect requirements for the EOSC Core. The workshop will be also a way to establish direct collaboration channels with the above-mentioned stakeholders
Horizon Europe train-the-trainer workshop
Creators: name: Alea Lopez De San Roman
name: Meyer, Dagmar
name: Hermans, Emilie
name: Leenarts, Ellen
Publisher: name: Zenodo
Year: 2021
Subjects: Open Science requirement
Horizon Europe
Train-the-trainer
Research support

description: For several years Open Science requirements and recommendations have been part of the grant agreements of European projects. The European Commission supports Open Science practices to increase the visibility, impact and excellence of project results funded through its funding programmes. The first calls for Horizon Europe were published earlier this year and Open Science is now embedded in it, meaning that the requirements are implemented throughout the Horizon Europe work programmes, in all stages of the project life cycle, from proposal to the final stages of the project. Researchers from across the spectrum of organisations will have questions on how to comply with these requirements and in this workshop we will address the different obligations and discuss best practices and approaches, with special attention for new aspects such as the evaluation of Open Science at the proposal stage. We aim to scale up Horizon Europe support, and together we want to train more people, produce collective materials and exchange ideas and experiences. In this interactive workshop we aim to discover answers, collaborating with the target audience. The workshop will be coordinated and delivered by members of the OpenAIRE Training Community of Practice of Training Coordinators.
Gaussian Kinetic Model for Granular Gases
Creators: name: Dufty, James W.
name: Baskaran, Aparna
name: Zogaib, Lorena
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A kinetic model for the Boltzmann equation is proposed and explored as a practical means to investigate the properties of a dilute granular gas. It is shown that all spatially homogeneous initial distributions approach a universal "homogeneous cooling solution" after a few collisions. The homogeneous cooling solution (HCS) is studied in some detail and the exact solution is compared with known results for the hard sphere Boltzmann equation. It is shown that all qualitative features of the HCS, including the nature of over population at large velocities, are reproduced semi-quantitatively by the kinetic model. It is also shown that all the transport coefficients are in excellent agreement with those from the Boltzmann equation. Also, the model is specialized to one having a velocity independent collision frequency and the resulting HCS and transport coefficients are compared to known results for the Maxwell Model. The potential of the model for the study of more complex spatially inhomogeneous states is discussed.
description: to be submitted to Phys. Rev. E
Direct Numerical Simulation of bubble-induced turbulence at high Reynolds numbers
Creators: name: Innocenti, Alessio
name: Jaccod, Alice
name: Popinet, Stéphane
name: Chibbaro, Sergio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report on a investigation of turbulent bubbly flows. Bubbles of a size larger than the dissipative scale, cannot be treated as point-wise inclusions, and generate important hydrodynamic fields in the carrier fluid when in motion. Furthermore, when the volume fraction of bubbles is large enough, the bubble motion may induce a collective agitation due to hydrodynamic interactions which display some turbulent-like features. We tackle this complex phenomenon numerically, performing direct numerical simulations (DNS) with a Volume-of-fluid (VOF) method. In the first part of the work, we perform both 2D and 3D tests in order to determine appropriate numerical and physical parameters. We then carry out a highly-resolved simulation of a 3D bubble column, with a configuration and physical parameters similar to those used in laboratory experiments. This is the largest simulation attempted for such a configuration and is possible only thanks to adaptive grid refinement. Results are compared both with experiments and previous coarse-mesh numerical simulations. In particular, the one-point Probability Density Function (PDF) of the liquid velocity fluctuations is in good quantitative agreement with experiments, notably in the vertical direction, although more extreme events are sampled in the present configuration. The spectra of the liquid kinetic energy show a clear $k^{-3}$ scaling. The mechanisms underlying the energy transfer and notably the possible presence of a cascade are unveiled by a local scale-by-scale analysis in the physical space. The comparison with previous simulations indicate to what extent simulations not fully resolved may yet give correct results, from a statistical point of view.
description: Manuscript fully revised
Corridor Redesign of Chancellor Boulevard : Detailed Design Report
Creators: name: Konway, Bain
name: Krahn, Brad
name: Martinson, Stuart
name: Norwick, Megan
name: Ong, Katrina
name: Pertch, Chris
Publisher: name: The University of British Columbia
Year: 2018

description: Chancellor Boulevard is one of four roads accessing the University of British Columbia’s Point Grey campus. The corridor currently experiences heavy vehicle traffic at two peak times per day with drivers routinely exceeding the posted speed of 60 km/hr. In the current design, cyclists must share the road with vehicles as there is no separated or designated bike lane. Campus Consulting Ltd. was retained to complete both a preliminary and detailed design. The detailed design report herein includes: a grade separated pedestrian underpass, a two-lane road (without a median), a roundabout to slow traffic, and an infiltration swale separating the multi-use path from the road to infiltrate road runoff. The Corridor Redesign of Chancellor Boulevard provides an opportunity to address some of these key issues as well as other identified issues including stormwater management, environmental protection, geotechnical concerns, and stakeholder concerns. The objectives governing the redesign process include: • meeting all future transportation demands, • prioritizing buses, cyclists, and pedestrians and ensuring the safety of all road users, • avoiding negatively impacting Pacific Spirit Park and the habitats it provides, • accommodating and improving drainage, and • minimizing costs and optimizing the construction schedule. The updated cost of the design is $3.86 million, an increase from $3.43 million as estimated during the preliminary design phase. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
The Market for Winter Tomatoes: A Rational Expectations Interpretation
Creators: name: Shonkwiler, J. Scott
name: Emerson, Robert D.
name: Shonkwiler, J. Scott
name: Emerson, Robert D.
Publisher: name: Unknown
Year: 1981
Subjects: Crop Production/Industries

description: A model of the Florida tomato industry is formulated under the hypothesis that growers make production decisions as rational economic agents. This assumption implies that anticipated Mexican tomato imports as well as other economic variables are taken into account when the planting decision is made. Maximum likelihood estimation methods are used to solve the simultaneous equations model, and the implications of the model's reduced form are analyzed.
Simultaneous evolution of the virial parameter and star formation rate in molecular clumps undergoing global hierarchical collapse
Creators: name: Camacho, Vianey
name: Vázquez-Semadeni, Enrique
name: Palau, Aina
name: Busquet, Gemma
name: Zamora-Avilés, Manuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compare dense clumps and cores in a numerical simulation of molecular clouds (MCs) undergoing global hierarchical collapse (GHC) to observations in two MCs at different evolutionary stages, the Pipe and the G14.225 clouds, to test the ability of the GHC scenario to follow the early evolution of the energy budget and star formation activity of these structures. In the simulation, we select a region that contains cores of sizes and densities similar to the Pipe cores, and find that it evolves through accretion, developing substructure similar to that of G14.225 cloud after $\sim 1.6$ Myr. Within this region, we follow the evolution of the Larson ratio $\mathcal{L} \equiv σ_{\rm v}/R^{1/2}$, where $σ_{\rm v}$ is the velocity dispersion and $R$ is the size, the virial parameter $α$, and the star formation activity of the cores/clumps. In the simulation, we find that as the region evolves: $i)$ its clumps have $\mathcal{L}$ and $α$ values first consistent with those of the Pipe substructures and later with those of G14.225; $ii)$ the individual cores first exhibit a decrease in $α$ followed by an increase when star formation begins; $iii)$ collectively, the ensemble of cores/clumps reproduces the observed trend of lower $α$ for higher-mass objects, and $iv)$ the star formation rate and star formation efficiency increase monotonically. We suggest that this evolution is due to the simultaneous loss of externally-driven compressive kinetic energy and increase of the self-gravity-driven motions. We conclude that the GHC scenario provides a realistic description of the evolution of the energy budget of the clouds' substructure at early times, which occurs simultaneously with an evolution of the star formation activity.
description: Accepted for publication in ApJ
Charm Phenomenology for CKM Parameters
Creators: name: Petrov, Alexey A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review several key aspects of charm phenomenology which are important for the general program of determination of matrix elements of the Cabbibo-Kobayashi-Maskava (CKM) matrix. We argue that charm physics plays an important role in reducing uncertainties in non-perturbative QCD parameters whose values are required for understanding of underlying quark-level processes. We also review the current status of searches for new physics in mixing and CP violation in charmed mesons both at the currently operating and proposed facilities.
description: Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003. 7 pages, no figures
Papillacarus aciculatus
Creators: name: Norton, Roy A.
name: Ermilov, Sergey G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Lohmanniidae
Papillacarus
Papillacarus aciculatus

description: Papillacarus aciculatus (Berlese, 1905)
 Larva: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 Protonymph: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 Deutonymph: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 Tritonymph: Shereef 1976b (Ds, FB, DT, Cul, Fd)
description: Published as part of Norton, Roy A. & Ermilov, Sergey G., 2014, Catalogue and historical overview of juvenile instars of oribatid mites (Acari: Oribatida), pp. 1-132 in Zootaxa 3833 (1) on page 17, DOI: 10.11646/zootaxa.3833.1.1, http://zenodo.org/record/5122134
. Econometric Simulation Approach to Evaluating the Impact of a Technological Change
Creators: name: Brandt, Jon A.
name: French, Ben C.
name: Brandt, Jon A.
name: French, Ben C.
Publisher: name: Unknown
Year: 1981
Subjects: Crop Production/Industries

description: An econometric model of the processing tomato industry is formulated to simulate industry price, production, and employment levels with and without the adoption of the mechanical tomato harvester.. Alternative scenarios indicate that acreage increased by 30,000 to 85,000 acres and grower prices (deflated) declined by $6.84/ton to $19.51/ton with the adoption of the harvester. Displaced harvest labor employment was offset to a large degree by increases in assembly and cannery employment.
The Bethe-Salpeter equation at the critical end-point of the Mott transition
Creators: name: van Loon, Erik G. C. P.
name: Krien, Friedrich
name: Katanin, Andrey A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strong repulsive interactions between electrons can lead to a Mott metal-insulator transition. The Dynamical Mean-Field Theory (DMFT) explains the critical end-point and hysteresis region with single-particle concepts such as the spectral function and the quasiparticle weight. In this work, we reconsider the critical end point of the metal-insulator transition on the two-particle level. We show that the relevant eigenvalue and eigenvector of the non-local Bethe-Salpeter kernel provide a unified picture of the hysteresis region and of the critical end point of the Mott transition. In particular, they simultaneously explain the thermodynamics of the hysteresis region and the iterative stability of the DMFT equations. This analysis paves the way for a deeper understanding of phase transitions in correlated materials.
description: 5 pages + supplement
A NEW DEVELOPMENT IN THE MARGINAL PRODUCTIVITY THEORY OF FACTOR DEMAND
Creators: name: Robinson, Lindon J.
name: Robinson, Lindon J.
Publisher: name: Unknown
Year: 1981
Subjects: Productivity Analysis

description: This paper proves a new theory that achieves for all functions what Euler's *theorem does for linearly homogeneous functions; that is, it exhausts the output among the inputs. The resulting factor shares are shown to be consistent with the marginal productivity of factor demand.
Kaon-antikaon nuclear optical potentials and the kappa meson in the nuclear medium
Creators: name: Cabrera, D.
name: Vacas, M. J. Vicente
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the properties of the kappa meson in the nuclear medium, starting from a chiral unitary model of S-wave, I=1/2 K-pi scattering, which describes the elastic K-pi phase shifts and generates a pole in the amplitude. Medium effects are considered by including pion and kaon selfenergies. We explore the changes in the kappa pole position and in the K-pi scattering amplitude at finite density, with two different models for the kaon selfenergy.
description: 15 pages, 5 color figures; Sections II and III revised, some references added
Surface chiral superconductivity in odd-parity nematic superconductors with magnetic impurities
Creators: name: Chirolli, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study odd-parity nematic superconductivity in doped topological insulators in presence of surface magnetic impurities. The peculiar surface subgap spectrum, characterized by a Majorana flatband, nodal cones and the surface states of the parent topological insulator, gives rise to an overall ferromagnetic RKKY interactions between the surface impurities. An additional coupling between the impurities and a preemptive chiral order parameter promote a surface time-reversal symmetry breaking solution at the surface of the system. We discuss the relevant scenarios and suggest to engineer surface chiral superconductivity by properly choosing magnetic adatoms with highly anisotropic exchange coupling.
description: Main 5 pages, Sup. Mat. 5 pages, 5 figures
The Galactic Inner Halo: Searching for White Dwarfs and Measuring the Fundamental Galactic Constant, Vo/Ro
Creators: name: Kalirai, Jasonjot S.
name: Richer, Harvey B.
name: Hansen, Brad M.
name: Stetson, Peter B.
name: Shara, Michael M.
name: Saviane, Ivo
name: Rich, R. Michael
name: Limongi, Marco
name: Ibata, Rodrigo
name: Gibson, Brad K.
name: Fahlman, Gregory G.
name: Brewer, James
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We establish an extragalactic, zero-motion frame of reference within the deepest optical image of a globular star cluster, an HST 123-orbit exposure of M4 (GO 8679, cycle 9). The line of sight beyond M4 (l,b (deg) = 351,16) intersects the inner halo (spheroid) of our Galaxy at a tangent-point distance of 7.6 kpc (for Ro = 8 kpc). We isolate these spheroid stars from the cluster based on their proper motions over the 6-year baseline between these and previous epoch HST data (GO 5461, cycle 4). Distant background galaxies are also found on the same sight line using image-morphology techniques. This fixed reference frame allows us to independently determine the fundamental Galactic constant, Vo/Ro = 25.3 +/- 2.6 km/s/kpc, thus providing a velocity of the Local Standard of Rest, v = 202.7 +/- 24.7 km/s for Ro = 8.0 +/- 0.5 kpc. Secondly, the galaxies allow a direct measurement of M4's absolute proper motion, mu_total = 22.57 +/- 0.76 mas/yr, in excellent agreement with recent studies. The clear separation of galaxies from stars in these deep data also allow us to search for inner-halo white dwarfs. We model the conventional Galactic contributions of white dwarfs along our line of sight and predict 7.9 (thin disk), 6.3 (thick disk) and 2.2 (spheroid) objects to the limiting magnitude at which we can clearly delineate stars from galaxies (V = 29). An additional 2.5 objects are expected from a 20% white dwarf dark halo consisting of 0.5 Mo objects, 70% of which are of the DA type. After considering the kinematics and morphology of the objects in our data set, we find the number of white dwarfs to be consistent with the predictions for each of the conventional populations. However, we do not find any evidence for dark halo white dwarfs.
description: 31 pages, including 6 diagrams and 2 tables. Accepted for publication in ApJ
Papillacarus angulatus Wallwork 1962
Creators: name: Norton, Roy A.
name: Ermilov, Sergey G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Lohmanniidae
Papillacarus
Papillacarus angulatus

description: Papillacarus angulatus Wallwork, 1962
 Tritonymph: Wallwork 1962c (Ds)
description: Published as part of Norton, Roy A. & Ermilov, Sergey G., 2014, Catalogue and historical overview of juvenile instars of oribatid mites (Acari: Oribatida), pp. 1-132 in Zootaxa 3833 (1) on page 17, DOI: 10.11646/zootaxa.3833.1.1, http://zenodo.org/record/5122134
Additional file 2 of Sustained HIV viral suppression among men who have sex with men in the Miami-Dade County Ryan White Program: the effect of demographic, psychosocial, provider and neighborhood factors
Creators: name: Sheehan, Diana M.
name: Dawit, Rahel
name: Semiu O. Gbadamosi
name: Fennie, Kristopher P.
name: Li, Tan
name: Merhawi Gebrezgi
name: Brock, Petra
name: Ladner, Robert A.
name: Trepka, Mary Jo
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Additional file 2. Variables considered for neighborhood indices
Charge manipulation and imaging of the Mn acceptor state in GaAs by Cross-sectional Scanning Tunneling Microscopy
Creators: name: Yakunin, A. M.
name: Silov, A. Yu.
name: Koenraad, P. M.
name: Wolter, J. H.
name: Van Roy, W.
name: De Boeck, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An individual Mn acceptor in GaAs is mapped by Cross-sectional Scanning Tunneling Microscopy (X-STM) at room temperature and a strongly anisotropic shape of the acceptor state is observed. An acceptor state manifests itself as a cross-like feature which we attribute to a valence hole weakly bound to the Mn ion forming the (Mn$^{2+}3d^5+hole$) complex. We propose that the observed anisotropy of the Mn acceptor wave-function is due to the d-wave present in the acceptor ground state.
description: Proceedings of the SIMD-4 conference. Hawaii, USA (December 1-5, 2003)
Neutrino oscillation physics with a higher $γ$ $β$-beam
Creators: name: Burguet-Castell, J.
name: Casper, D.
name: Gomez-Cadenas, J. J.
name: Hernandez, P.
name: Sanchez, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The precision measurement and discovery potential of a neutrino factory based on a storage ring of boosted radioactive ions ($β$-beam) is re-examined. In contrast with past designs, which assume ion $γ$ factors of $\sim 100$ and baselines of L=130 km, we emphasize the advantages of boosting the ions to higher $γ$ and increasing the baseline proportionally. In particular, we consider a medium-$γ$ scenario ($γ\sim 500$, L=730 km) and a high-$γ$ scenario ($γ\sim 2000$, L = 3000 km).The increase in statistics, which grow linearly with the average beam energy, the ability to exploit the energy dependence of the signal and the sizable matter effects at this longer baseline all increase the discovery potential of such a machine very significantly.
description: An error corrected, conclusions unchanged. Revised version to appear in Nuclear Physics B
Papillacarus egypticus Elbadry & Nasr 1977
Creators: name: Norton, Roy A.
name: Ermilov, Sergey G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Lohmanniidae
Papillacarus
Papillacarus egypticus

description: Papillacarus egypticus Elbadry & Nasr, 1977
 Larva: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 Protonymph: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 Deutonymph: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 Tritonymph: Shereef 1976b (Ds, FB, DT, Cul, Fd)
 N.B. Shereef (1976) used the name Lohmannia egyptica, but it was a nomen nudum.
description: Published as part of Norton, Roy A. & Ermilov, Sergey G., 2014, Catalogue and historical overview of juvenile instars of oribatid mites (Acari: Oribatida), pp. 1-132 in Zootaxa 3833 (1) on page 17, DOI: 10.11646/zootaxa.3833.1.1, http://zenodo.org/record/5122134
Optimal rates of decay in the Katznelson-Tzafriri theorem for operators on Hilbert spaces
Creators: name: Ng, Abraham C. S.
name: Seifert, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The Katznelson-Tzafriri theorem is a central result in the asymptotic theory of discrete operator semigroups. It states that for a power-bounded operator $T$ on a Banach space we have $||T^n(I-T)\|\to0$ if and only if $σ(T)\cap\mathbb{T}\subseteq\{1\}$. The main result of the present paper gives a sharp estimate for the rate at which this decay occurs for operators on Hilbert space, assuming the growth of the resolvent norms $\|R(e^{iθ},T)\|$ as $|θ|\to0$ satisfies a mild regularity condition. This significantly extends an earlier result by the second author, which covered the important case of polynomial resolvent growth. We further show that, under a natural additional assumption, our condition on the resolvent growth is not only sufficient but also necessary for the conclusion of our main result to hold. By considering a suitable class of Toeplitz operators we show that our theory has natural applications even beyond the setting of normal operators, for which we in addition obtain a more general result.
description: Accepted for publication in the Journal of Functional Analysis
Transport mechanism in amorphous molybdenum silicide thin films
Creators: name: Liu, Zhengyuan
name: Luo, Bingcheng
name: Hu, Junbiao
name: Xing, Cheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Amorphous molybdenum silicide compounds have attracted significant interest for potential device applications, particularly in single-photon detector. In this work, the temperature-dependent resistance and magneto-resistance behaviors were measured to reveal the charge transport mechanism, which is of great importance for applications but is still insufficient. It is found that Mott variable hopping conductivity dominates the transport of sputtered amorphous molybdenum silicide thin films. Additionally, the observed magneto-resistance crossover from negative to positive is ascribed to the interference enhancement and the shrinkage of electron wave function, both of which vary the probability of hopping between localized sites.
description: 16 pages, 5 figures
Additional file 1 of Sustained HIV viral suppression among men who have sex with men in the Miami-Dade County Ryan White Program: the effect of demographic, psychosocial, provider and neighborhood factors
Creators: name: Sheehan, Diana M.
name: Dawit, Rahel
name: Semiu O. Gbadamosi
name: Fennie, Kristopher P.
name: Li, Tan
name: Merhawi Gebrezgi
name: Brock, Petra
name: Ladner, Robert A.
name: Trepka, Mary Jo
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Additional file 1. Variables considered for health need and psychosocial indices
Papillacarus spinosus Bischoff de Alzuet 1971
Creators: name: Norton, Roy A.
name: Ermilov, Sergey G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Lohmanniidae
Papillacarus
Papillacarus spinosus

description: Papillacarus spinosus Bischoff de Alzuet, 1971
 Deutonymph: Bischoff de Alzuet 1972 (Ds, FB); Schatz & Schuster 2012 (Dsp)
 Tritonymph: Bischoff de Alzuet 1972 (Ds, FB)
description: Published as part of Norton, Roy A. & Ermilov, Sergey G., 2014, Catalogue and historical overview of juvenile instars of oribatid mites (Acari: Oribatida), pp. 1-132 in Zootaxa 3833 (1) on page 17, DOI: 10.11646/zootaxa.3833.1.1, http://zenodo.org/record/5122134
Classical Simulation of Noncontextual Pauli Hamiltonians
Creators: name: Kirby, William M.
name: Love, Peter J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Noncontextual Pauli Hamiltonians decompose into sets of Pauli terms to which joint values may be assigned without contradiction. We construct a quasi-quantized model for noncontextual Pauli Hamiltonians. Using this model, we give an algorithm to classically simulate noncontextual VQE. We also use the model to show that the noncontextual Hamiltonian problem is NP-complete. Finally, we explore the applicability of our quasi-quantized model as an approximate simulation tool for contextual Hamiltonians. These results support the notion of noncontextuality as classicality in near-term quantum algorithms.
description: 15 pages
Nuclear halo and the coherent nuclear interaction
Creators: name: Alzetta, R.
name: Liberti, G.
name: Zaffino, R. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The unusual structure of Li11, the first halo nucleus found, is analyzed by the Preparata model of nuclear structure. By applying Coherent Nucleus Theory, we obtain an interaction potential for the halo-neutrons that rightly reproduces the fundamental state of the system.
description: 9 pages Submitted to International Journal of Modern Physics E (IJMPE)
Demographic correlates of movement behaviours in infants
Creators: name: Zhang, Zhiguang
name: Predy, Madison
name: Hesketh, Kylie
name: Pritchard, Lesley
name: Carson, Valerie
Publisher: name: The Health & Fitness Journal of Canada
Year: 2022

description: Background: Demographic correlates of movement behaviours in infants are unclear. Purpose: Examine the longitudinal associations between demographic correlates and movement behaviours (i.e., tummy time, restrained time, reading time, screen time, sleep time) in infants. Methods: Participants were 411 parents of infants from the Early Movers project in Edmonton, Canada. Movement behaviours, infant and parental age, and non-parental care time were assessed using a parental questionnaire at 2, 4, and 6 months of age. Other infant and parental demographic variables were assessed at 2 months of age. Linear and generalized linear mixed models were conducted. Results: Infant age (days) or age2 was positively with tummy time, reading time, and screen time as well as negatively associated with sleep time. Caucasian infants and those with older parents had less tummy time and an increased likelihood of having reading time. Infants of the most educated parents also had lower tummy time. Higher parent education and more siblings were associated with no screen time and longer sleep in infants. Infants with immigrant parent(s) were less likely to have reading time. No associations were found for infant sex, non-parental care, and parental marital status. Conclusion: Movement behaviours changed throughout infancy and no single demographic group had healthy patterns for all movement behaviours. Therefore, a healthy balance of movement behaviours should be promoted in all infants. Funding: Canadian Institutes of Health Research, Stollery Children's Hospital Foundation through the Women and Children’s Health Research Institute, and the University of Alberta.
description: The Health & Fitness Journal of Canada, Vol. 14 No. 3 (2021): Proceedings from the 8th International Society for Physical Activity and Health Congress
Charge separation effects in magnetized electron-ion plasma expansion into a vacuum
Creators: name: Nishimura, Kazumi
name: Liang, Edison
name: Gary, S. Peter
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Charge separation effects in the expansion of magnetized relativistic electron-ion plasmas into a vacuum are examined using 2-1/2-dimensional particle-in-cell plasma simulations. The electrostatic field at the plasma surface decelerates electrons and accelerates ions. A fraction of the surface electrons are trapped and accelerated by the pondermotive force of the propagating electromagnetic pulse, a mechanism we call the DRPA (diamagnetic relativistic pulse accelerator). This charge separation is enhanced as the initial plasma temperature is decreased. The overall energy gain of the plasma particles through the expansion strongly depends on the initial plasma temperature. Moreover, the electrons become relatively less energized and the ions more energized as the plasma temperature decreases.
description: 4 pages, submitted to Physics of Plasmas
Complex X-ray spectral behaviour of NGC 4051 in the low flux state
Creators: name: Uttley, P.
name: Taylor, R. D.
name: McHardy, I. M.
name: Page, M. J.
name: Mason, K. O.
name: Lamer, G.
name: Fruscione, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Narrow Line Seyfert 1 galaxy NGC 4051 was observed in one of its prolonged low-lux states by XMM-Newton in November 2002. Here we present the results of an analysis of EPIC-pn data obtained during the observation. Within the low state, the source shows complex spectral variability which cannot easily be explained by any simple model. However, by making a `flux-flux' plot which combines the low state data with data obtained during a normal flux state, we demonstrate that the extremely hard spectrum observed above 2 keV results from a continuation of the spectral variability seen in the normal state, which is caused by spectral pivoting of the power-law continuum. The pivoting power-law appears to be attached to a Comptonised thermal component of variable flux (blackbody temperature kT~0.1 keV, consistent with the small black hole mass in NGC 4051) which dominates the soft X-ray band in the low state, and is probably the source of seed photons for Comptonisation. Additional constant thermal and reflection components, together with absorption by ionised gas, seem to be required to complete the picture and explain the complex X-ray spectral variability seen in the low state of NGC 4051.
description: Accepted for publication in MNRAS. 13 pages, 10 figs. A higher resolution eps version of Fig. 8 is included in the source files
Logarithmic Negativity in Quantum Lifshitz Theories
Creators: name: Angel-Ramelli, J.
name: Berthiere, C.
name: Puletti, V. Giangreco M.
name: Thorlacius, L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate quantum entanglement in a non-relativistic critical system by calculating the logarithmic negativity of a class of mixed states in the quantum Lifshitz model in one and two spatial dimensions. In 1+1 dimensions we employ a correlator approach to obtain analytic results for both open and periodic biharmonic chains. In 2+1 dimensions we use a replica method and consider spherical and toroidal spatial manifolds. In all cases, the universal finite part of the logarithmic negativity vanishes for mixed states defined on two disjoint components. For mixed states defined on adjacent components, we find a non-trivial logarithmic negativity reminiscent of two-dimensional conformal field theories. As a byproduct of our calculations, we obtain exact results for the odd entanglement entropy in 2+1 dimensions.
description: 7 figures, 36 pages + appendices; v2: References added, appendix A added, and typos corrected (published version)
Montana Is My Favorite Snowflake
Creators: name: Scott, Robert W.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3602
subject: Creative and professional writing

description: This is a book about changes. It is about the process of overcoming the past so that one can learn to live in the present and be motivated to embrace the future. It is about overcoming the darkness and turning to face the light. It is about becoming human. These changes are not marked solely by the seasons, nor by the passage of years. Yet both time and nature are forces to be reckoned with, and the heart and mind must learn to come to terms with these forces. Our inner moods are reflected by the turbulent world outside. If we are to change, we must move forward through a physical landscape as well as through a psychical one. These poems seeks to describe these movements in both playful and serious tones.