cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Conceptions of Excellence in Primary Mathematics Teaching
Creators: name: McCullouch, Judith Mary
Publisher: name: The Open University
Year: 2015

description: This research had two drivers: the persistent demand by policy makers for educators to achieve 'excellence' in teaching without defining what is meant nor agreeing how to achieve it; the paradoxes encountered by teachers across education who create their identity through a need to reconcile their personality, life stories, professionalism and the political agenda. The research question was 'How is excellence in primary mathematics teaching perceived by primary teachers and mathematics teacher educators in England?' and analysis drew upon literature about education, mathematics education and the theoretical perspectives of social constructivism and socioculturalism. An interpretative approach was adopted to explore understandings and beliefs about what comprises excellence in mathematics teaching. Data were gained from four groups: student, non-specialist and mathematics specialist teachers, and university mathematics education lecturers - through interviews which produced both narrative and mind-maps. These were analysed thematically. The analysis revealed and illuminated surprising and interesting new perspectives. The main outcomes were: three interwoven and interdependent themes (confidence, knowledge and supererogation) which contribute together to create excellent teaching in primary mathematics; two dichotomies exemplifying the complexities of teaching; and the unexpected emergence of 'good enough' being sufficient to meet targets. The three key themes will resonate with the teaching profession, providing an aid to articulating their embedded, implicit guild knowledge. The dichotomies and the notion of 'good enough' highlight the professional conundrums that teachers encounter. They have to reconcile their professional identity and beliefs with the exigencies of belonging to communities of practice as well as outside expectation and requirements. The research showed that excellence is an aspirational ideal, embodied in the child who is the product of excellent teaching. This research contributes to an understanding of factors impinging upon the development of excellent teaching (in mathematics education and beyond), thereby offering ways forward to educators and policy makers.
The dynamics of the γ Vel cluster and nearby Vela OB2 association
Creators: name: Armstrong, Joseph J.
name: Wright, Nicholas J.
name: Jeffries, R. D.
name: Jackson, R. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The kinematics of low-mass stars in nearby OB associations can provide clues about their origins and evolution. Combining the precise positions, proper motions and parallaxes given in the second Gaia Data Release with radial velocity measurements obtained with the Hermes spectrograph at the Anglo-Australian Telescope, we have an opportunity to study in detail the kinematics of low-mass stars belonging to the nearby $γ$ Vel cluster and the Vela OB2 association it is projected against. The presence of lithium is used to confirm the youth of our targets. We separate our sample into the cluster and association populations based on the membership probabilities of Jeffries et al. 2014, their parallaxes, and kinematics. We find strong evidence for expansion in the OB association population with at least 4$σ$ significance along all three axes, though the expansion is notably anisotropic. We discuss these results in the context of cluster and association dispersal theories.
description: 9 pages, 8 figures, 1 table, accepted for publication in MNRAS
Collaboration, Venus, and Mars : The gender factor in intersectoral relations
Creators: name: AbouAssi, Khaldoun
name: Bauer, Zachary
name: Johnston, Jocelyn
Publisher: name: Oxford University Press
Year: 2023
Subjects: classificationCode: 4407
subject: Policy and administration

description: Scholarship across disciplines offers evidence that gender plays a significant role in organizational dynamics. Gender differences in preferences, attitudes, and behaviors affect employee behavior and organizational outcomes. This article extends the gender factor into the realm of interorganizational and intersectoral collaboration to examine not just whether, but also how gender affects the management of these relationships. We analyze these differences in the context of local government– nonprofit organization (NPO) relations in a developing country with data from two 2017 nationally representative surveys of local governments and NPOs in Lebanon. Our results suggest that in maledominated nations like Lebanon, females leading local government organizations are less likely to enter into cross-sector collaborations than their male counterparts, and in the nonprofit sector, gender plays no significant role in the decision to collaborate. However, among existing collaborations, females, as compared with males, have been more likely to both initiate and fund the interorganizational/ intersectoral relationships. These results contribute to the literature on gender, management, and intersectoral collaboration, and offer an agenda for future scholarship on these topics.
Vortex-Line Percolation in the Three-Dimensional Complex Ginzburg-Landau Model
Creators: name: Bittner, Elmar
name: Krinner, Axel
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the phase transition of the three-dimensional complex |psi|^4 theory by considering the geometrically defined vortex-loop network as well as the magnetic properties of the system in the vicinity of the critical point. Using high-precision Monte Carlo techniques we examine an alternative formulation of the geometrical excitations in relation to the global O(2)-symmetry breaking, and check if both of them exhibit the same critical behavior leading to the same critical exponents and therefore to a consistent description of the phase transition. Different percolation observables are taken into account and compared with each other. We find that different definitions of constructing the vortex-loop network lead to different results in the thermodynamic limit, and the percolation thresholds do not coincide with the thermodynamic phase transition point.
description: 6 pages, 4 fig., talk given at Lattice 2005 (Spin and Higgs models) Dublin
Additional file 1 of The usefulness of virtual, augmented, and mixed reality technologies in the diagnosis and treatment of attention deficit hyperactivity disorder in children: an overview of relevant studies
Creators: name: Goharinejad, Saeideh
name: Goharinejad, Samira
name: Hajesmaeel-Gohari, Sadrieh
name: Bahaadinbeigy, Kambiz
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Wood Pellets for UBC Boilers Replacing Natural Gas Based on LCA
Creators: name: Chan, Bernard
name: Chan, Brian
name: Young, Christopher
Publisher: name: The University of British Columbia
Year: 2010

description: 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.”
3D-surface reconstruction of cellular cryo-soft X-ray microscopy tomograms using semi-supervised deep learning
Creators: name: Dyhr, Michael C. A.
name: Sadeghi, Mohsen
name: Moynova, Ralitsa
name: Knappe, Carolin
name: Kepsutlu, Burcu
name: Werner, Stephan
name: Schneider, Gerd
name: McNally, James
name: Noe, Frank
name: Ewers, Helge
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Biology
subject: cryo-soft X-ray microscopy tomograms
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Cryo-soft X-ray tomography (cryo-SXT) is a powerful method to investigate the ultrastructure of cells, offering resolution in the tens of nm range and strong contrast for membranous structures without requirement for labeling or chemical fixation. The short acquisition time and the relatively large volumes acquired allow for fast acquisition of large amounts of tomographic image data. Segmentation of these data into accessible features is a necessary step in gaining biologically relevant information from cryo-soft X-ray tomograms. However, manual image segmentation still requires several orders of magnitude more time than data acquisition. To address this challenge, we have here developed an end-to-end automated 3D-segmentation pipeline based on semi-supervised deep learning. Our approach is suitable for high-throughput analysis of large amounts of tomographic data, while being robust when faced with limited manual annotations and variations in the tomographic conditions. We validate our approach by extracting three-dimensional information on cellular ultrastructure and by quantifying nanoscopic morphological parameters of filopodia in mammalian cells.
Comprehensive Analysis of a Non-Singular Bounce in $f(R,T)$ Gravitation
Creators: name: Bhattacharjee, Snehasish
name: Sahoo, P. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The present paper is devoted to the study of bouncing cosmology in $f(R,T)$ modified gravity where we presume $f(R,T) = R + 2 λT$, with $R$ the Ricci scalar, $T$ the trace of energy momentum tensor and $λ$ the model parameter. We present here a novel parametrization of Hubble parameter which is apt in representing a successful bouncing scenario undergoing no singularity. We proceed to present a complete analysis of the proposed bouncing model by studying the evolution of primordial curvature perturbations, energy conditions and stability against linear homogeneous perturbations in flat space-time. We also delineate bouncing cosmology for the proposed model by employing Quintom matter. The present article further communicate for the first time that violation of energy-momentum materialize for both the contracting and expanding universes except for the bouncing epoch with energy flow directed away and into the matter fields for the contracting and expanding universe respectively. We further present a thorough investigation about the feasibility of the proposed bouncing scenario against first and generalized second law of thermodynamics. We found that the proposed bouncing scenario obeys the laws of thermodynamics for the constrained parameter space of $λ$. The manuscript conclude after investigating the viability of the proposed bouncing model in non minimal $f(R,T)$ gravity where $f(R,T) = R + χR T$.
description: 17 pages, 24 figures, Accepted version at Physics of the dark Universe
Technostress in University Lecturers: An Exploratory Study Using the Job Demands-Resources Theory
Creators: name: Moore, Linda
Publisher: name: Lancaster University
Year: 2024

description: University lecturers are expected to engage with a range of workplace
 information and computing technologies (ICTs) to fulfil teaching,
 learning, assessment, administrative and research responsibilities. This
 cross-sectional, survey-based, study addresses the need highlighted in
 recent literature for the investigation of the effects of technostress on
 university lecturers. Technostress arises when the individual finds it
 challenging to manage workplace ICT-related demands, leading to negative
 effects for both the individual worker and their employer organisation.
 Framed within the Job Demands-Resources Theory, the study described here
 explored ICT-associated technostress as a job demand in higher education
 workplaces, as experienced by a sample of Irish university lecturers
 (N=77). The relationship between technostress creators and lecturer
 well-being and work performance was explored. The potential moderating
 effect of technostress inhibitors in mitigating against these potential
 negative effects of technostress was also examined.

 Quantitative analysis findings suggest that Irish university lecturers
 experience the following technostress creators: techno-overload,
 techno-invasion, techno-complexity and techno-insecurity. No significant
 participant age, gender, or education level-related differences in these
 scores were identified. Hypothesis testing showed that techno-overload and
 techno-complexity negatively predict work performance, and positively
 predict work-related burnout, which was also shown to be positively
 predicted by techno-invasion. Work-related burnout negatively predicted
 work performance, but only mediated the relationship between
 techno-invasion and work performance. Analysis of the mitigating role of
 technostress inhibitors delivered mixed results, with some findings
 suggesting that technostress inhibitors potentially magnify, instead of
 reducing, the negative effects of technostress creators. These
 quantitative findings were supported by participant narrative
 contributions about the use of ICTs in higher education workplaces. These
 narratives supported the discussion of the quantitative analysis results,
 while also informing recommendations for academic managers regarding
 organisational measures that can be adopted to identify, and mitigate
 against, the negative effects of technostress for both university
 lecturers and their employer universities.
Dressed vertices
Creators: name: Bozek, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The response of a correlated nuclear system to an external field is discussed. The Bethe-Salpeter equation for the dressed vertex is solved. The kernel of the integral equation for the vertex is chosen consistently with the approximation for the self-energy. This guarantees the fulfillment of the f-sum rule for the response function.
Study of the formation and decay of electron-hole plasma clusters in a direct-gap semiconductor CuCl
Creators: name: Jiang, L.
name: Wu, M. W.
name: Nagai, M.
name: Kuwata-Gonokami, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The master equation for the cluster-size distribution function is solved numerically to investigate the electron-hole droplet formation claimed to be discovered in the direct-gap CuCl excited by picosecond laser pulses [Nagai {\em et al.}, Phys. Rev. Lett. {\bf 86}, 5795 (2001); J. Lumin. {\bf 100}, 233 (2002)]. Our result shows that for the excitation in the experiment, the average number of pairs per cluster (ANPC) is only around 5.2, much smaller than that (10$^6$ typically for Ge) of the well studied electron-hole droplet in indirect-gap semiconductors such as Ge and Si.
description: 3 pages, 3 figures in eps format
Additional file 1 of Gut microbiota in children with juvenile idiopathic arthritis: characteristics, biomarker identification, and usefulness in clinical prediction
Creators: name: Xubo Qian
name: Liu, Yong-Xin
name: Xiaohong Ye
name: Wenjie Zheng
name: Shaoxia Lv
name: Miaojun Mo
name: Jinjing Lin
name: Wenqin Wang
name: Weihan Wang
name: Xianning Zhang
name: Lu, Meiping
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1 : Figure S1. Flowchart of the study. Figure S2. Flowchart of the major steps involved in biomarker identification. Figure S3. Plot of the Simpson and Pielou’s evenness indices. Figure S4. Predictive accuracies of different random forest models. Figure S5. The variable importance of OTUs.
Coherent molecular bound states of bosons and fermions near a Feshbach resonance
Creators: name: Drummond, P. D.
name: Kheruntsyan, K. V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We analyze molecular bound states of atomic quantum gases near a Feshbach resonance. A simple, renormalizable field theoretic model is shown to have exact solutions in the two-body sector, whose binding energy agrees well with observed experimental results in both Bosonic and Fermionic cases. These solutions, which interpolate between BEC and BCS theories, also provide a more general variational ansatz for resonant superfluidity and related problems.
description: Minor changes -- to match the final published version
UBC Food Systems Project: Climate Action Partnership - Moving UBC Beyond Climate Neutral
Creators: name: Miles, Claire
name: Poon, Ivy
name: Shepherd, Michelle
name: St-Jules, David
name: Tong, Eva
name: Wang, Ziming
name: Wu, Sandy
Publisher: name: The University of British Columbia
Year: 2010

description: 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.”
Additional file 1 of Urbanicity, hypothalamic-pituitary-adrenal axis functioning, and behavioral and emotional problems in children: a path analysis
Creators: name: Evans, B. E.
name: J. Van Der Ende
name: K. Greaves-Lord
name: A. C. Huizink
name: R. Beijers
name: C. De Weerth
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. JOiN and BIBO psychosocial stress procedures.
Morphological Identification of Impatiens Balsamina L. Seeds from Different Sources
Creators: name: Dewi, Ni Kadek Ema Sustia
name: Suryawati, Ami
name: Dewandini, Sri Kuning Retno
name: Maharani, Nabila
name: Wulandari, Eko Dewi
Publisher: name: Zenodo
Year: 2024

description: This material has been presented on 3rd International Conference on Advance Research in Agriculture and Food 2024 October 23 - 24, 2024.
Additional file 1 of Household solid waste management practices and perceptions among residents in the East Coast of Malaysia
Creators: name: Fadhullah, Widad
name: Imran, Nor Iffah Najwa
name: Ismail, Sharifah Norkhadijah Syed
name: Jaafar, Mohd Hafiidz
name: Abdullah, Hasmah
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1.
Molecular Gas in Spiral Galaxies
Creators: name: Thornley, Michele D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this review, I highlight a number of recent surveys of molecular gas in nearby spiral galaxies. Through such surveys, more complete observations of the distribution and kinematics of molecular gas have become available for galaxies with a wider range of properties (e.g., brightness, Hubble type, strength of spiral or bar structure). These studies show the promise of both interferometers and single-dish telescopes in advancing our general understanding of molecular gas in spiral galaxies. In particular, I highlight the contributions of the recent BIMA Survey of Nearby Galaxies (SONG).
description: 8 pages, 1 figure. To appear in the proceedings of the 4th Cologne-Bonn-Zermatt-Symposium, "The Dense Interstellar Medium in Galaxies", which was held in Zermatt, Switzerland in September 2003
Possible counterintuitive enhancement of superconductivity in ladder-type cuprates by longitudinal compression
Creators: name: Sakamoto, Hikaru
name: Kuroki, Kazuhiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically study the effect of uniaxial deformation of ladder-type cuprate superconductors. Model construction based on first principles calculation shows that the rung-to-leg ratio of the nearest neighbor hoppings counterintuitively increases when the lattice is compressed in the longitudinal (leg) direction. This leads to an enhancement of the superconducting transition temperature, which intuitively is expected when compressed in the rung direction. Such a trend is traced back to the on-site hybridization between Cu$4s$ and Cu$d_{x^2-y^2}$ orbitals, which varies and changes sign upon lattice deformation.
description: 7 pages, 6 figures (including supplemental material)
1- and 2-Level Densities for Rational Families of Elliptic Curves: Evidence for the Underlying Group Symmetries
Creators: name: Miller, Steven J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Number Theory (math.NT)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 11M26, 11G05, 11G40, 11M26

description: Following Katz-Sarnak, Iwaniec-Luo-Sarnak, and Rubinstein, we use the 1- and 2-level densities to study the distribution of low lying zeros for one-parameter rational families of elliptic curves over Q(t). Modulo standard conjectures, for small support the densities agree with Katz and Sarnak's predictions. Further, the densities confirm that the curves' L-functions behave in a manner consistent with having r zeros at the critical point, as predicted by the Birch and Swinnerton-Dyer conjecture. By studying the 2-level densities of some constant sign families, we find the first examples of families of elliptic curves where we can distinguish SO(even) from SO(odd) symmetry.
description: 55 pages, to appear in Compositio Mathematica
On the light-front wave functions of quarkonia
Creators: name: Maris, Pieter
name: Jia, Shaoyang
name: Li, Meijian
name: Li, Yang
name: Tang, Shuo
name: Vary, James P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The light-front wave functions of hadrons allow us to calculate a wide range of physical observables; however, the wave functions themselves cannot be measured. We discuss recent results for quarkonia obtained in basis light-front quantization using an effective Hamiltonian with a confining model in both the transverse and longitudinal directions and with explicit one-gluon exchange. In particular, we focus on the numerical convergence of the basis expansion, as well as the asymptotic behavior of the light-front wave functions. We also illustrate that, for mesons with unequal quark masses, the maxima of the light-front wave functions depend in a non-trivial way on the valence quark-mass difference.
description: to appear in the proceedings of Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions - LC2019, 16-20 September 2019, Ecole Polytechnique, Palaiseau, France
The physics of Galaxy Evolution with SPICA observations
Creators: name: Spinoglio, Luigi
name: Fernandez-Ontiveros, Juan A.
name: Mordini, Sabrina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The evolution of galaxies at Cosmic Noon (redshift 1
description: Contributed talk at the IAU Symp 359 Galaxy Evolution and Feedback Across Different Environments, 2020 March 2-6, Bento Concalves, Brazil. arXiv admin note: text overlap with arXiv:1911.12181
To the origin of large reduction of the effective moment in Na2V3O7
Creators: name: Ropka, Z.
name: Radwanski, R. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have shown that the observed large reduction of the effective moment in Na2V3O7 may be caused by conventional crystal-field interactions and the intra-atomic spin-orbit coupling of the V4+ ion. The fine discrete electronic structure of the 3d1 configuration with the weakly-magnetic Kramers-doublet ground state, caused by the large orbital moment, is the reason for anomalous properties of Na2V3O7. Moreover, according to the Quantum Atomistic Solid-State Theory (QUASST), Na2V3O7 is expected to exhibit pronounced heavy-fermion phenomena at low temperatures. PACS No: 71.70.E; 75.10.D Keywords: crystal-field interactions, spin-orbit coupling, orbital moment. Na2V3O7
description: 4 pages in RevTex4, 4 figs
Additional file 2 of Household solid waste management practices and perceptions among residents in the East Coast of Malaysia
Creators: name: Fadhullah, Widad
name: Imran, Nor Iffah Najwa
name: Ismail, Sharifah Norkhadijah Syed
name: Jaafar, Mohd Hafiidz
name: Abdullah, Hasmah
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2.
Handover Probability in Drone Cellular Networks
Creators: name: Banagar, Morteza
name: Chetlur, Vishnu Vardhan
name: Dhillon, Harpreet S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This letter analyzes the handover probability in a drone cellular network where the initial positions of drone base stations (DBSs) serving a set of user equipment (UE) on the ground are modeled by a homogeneous Poisson point process (PPP). Inspired by the mobility model considered in the third generation partnership project (3GPP) studies, we assume that all the DBSs move along straight lines in random directions. We further consider two different scenarios for the DBS speeds: (i) same speed model (SSM), and (ii) different speed model (DSM). Assuming nearest-neighbor association policy for the UEs on the ground, we characterize the handover probability of this network for both mobility scenarios. For the SSM, we compute the exact handover probability by establishing equivalence with a single-tier terrestrial cellular network, in which the base stations (BSs) are static while the UEs are mobile. We then derive a lower bound for the handover probability in the DSM by characterizing the evolution of the spatial distribution of the DBSs over time.
description: To appear in IEEE Wireless Communications Letters
Purification of the neurodegenerative disease associated protein TDP-43 and development of TDP-43 aggregation inhibitors.
Creators: name: Marshall, Toby
Publisher: name: Lancaster University
Year: 2024
Subjects: TDP-43
TDP-43 proteinopathies
TDP-43 Purification
Aggregation inhibitors

description: Transactive response DNA-binding protein-43 (TDP-43) is a protein that has
 been implicated in multiple neurodegenerative diseases, including
 amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration
 (FTLD). In these diseases, TDP-43 is found aggregated in the cytoplasm of
 neurones in the brain and spinal cord and it is hypothesised that this
 aggregation leads to neuronal degeneration. Despite identification of
 TDP-43 as a constituent of pathological aggregates in 2006, progress in
 biochemical characterisation of TDP-43 and its aggregation has been
 limited by an inability to purify sufficient soluble protein to allow
 characterisation. In this study, a novel method for the purification of
 TDP-43 has been developed. The resulting purified protein exists in
 multiple oligomeric states depending on buffer conditions, displays
 evidence of secondary structural content by circular dichroism
 spectroscopy and in preliminary studies demonstrates DNA binding activity.
 A TDP-43 C-terminal fragment was also purified and a fluorescence-based
 assay developed to monitor its aggregation, with transmission electron
 microscopy (TEM) used to image the aggregates produced. In this assay,
 small molecules were tested as aggregation inhibitors. Following minimal
 success re-purposing generic aggregation inhibitor molecules, a series of
 targeted peptide-based inhibitors were designed. The third-generation
 peptide inhibitors, designed with the aid of the artificial intelligence
 system AlphaFold, reduced the aggregation of the C-terminal fragment, with
 TEM identifying changes to the morphology of the aggregates produced.
 Finally, a “druggable” Saccharomyces cerevisiae yeast cell model of TDP-43
 proteinopathy was developed, in which molecules with potential as TDP-43
 aggregation inhibitors can be tested further.
The Boltzmann legacy revisited: kinetic models of social interactions
Creators: name: Fraia, Martina
name: Tosin, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: 35Q20, 35Q70, 35Q91

description: The application of classical methods of statistical mechanics, originally developed by Ludwig Boltzmann in gas dynamics, to the description of social phenomena is a successful story that we try to outline in this paper. On one hand, it is nowadays a flourishing research line, which is more and more permeating different contexts such as the econophysics, sociophysics, biomathematics, transportation engineering to name just a few of them. On the other hand, it is a fascinating mathematical challenge, because it requires the interplay of various complementary expertises: modelling, model analysis, numerics. In this paper, we try to give a taste of all of this using the social phenomenon of opinion formation as a motivating example.
description: 19 pages, 5 figures
Additional file 11 of Urbanicity, hypothalamic-pituitary-adrenal axis functioning, and behavioral and emotional problems in children: a path analysis
Creators: name: Evans, B. E.
name: J. Van Der Ende
name: K. Greaves-Lord
name: A. C. Huizink
name: R. Beijers
name: C. De Weerth
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 11. Statistics for the effects of urbanicity and HPA axis functioning on behavioral and emotional problems in the JOiN and BIBO samples (paths B and C in Figure 1).
Local quantum criticality in confined fermions on optical lattices
Creators: name: Rigol, M.
name: Muramatsu, A.
name: Batrouni, G. G.
name: Scalettar, R. T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using quantum Monte Carlo simulations, we show that the one-dimensional fermionic Hubbard model in a harmonic potential displays quantum critical behavior at the boundaries of a Mott-insulating region. A local compressibility defined to characterize the Mott-insulating phase has a non-trivial critical exponent. Both the local compressibility and the variance of the local density show universality with respect to the confining potential. We determine a generic phase diagram, that allows the prediction of the phases to be observed in experiments with ultracold fermionic atoms trapped on optical lattices.
description: Revtex file, 4 pages, 5 figures, published version
Additional file 1 of Protective effects of Quercus acuta Thunb. fruit extract against UVB-induced photoaging through ERK/AP-1 signaling modulation in human keratinocytes
Creators: name: Hong, Ji-Ae
name: Bae, Donghyuk
name: Oh, Kyo-Nyeo
name: Oh, Dool-Ri
name: Kim, Yujin
name: Kim, Yonguk
name: Jeong Im, So
name: Choi, Eun-jin
name: Lee, Seul-gi
name: Kim, Moonjong
name: Jeong, Changsik
name: Choi, Chul Yung
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1
Additional file 12 of Urbanicity, hypothalamic-pituitary-adrenal axis functioning, and behavioral and emotional problems in children: a path analysis
Creators: name: Evans, B. E.
name: J. Van Der Ende
name: K. Greaves-Lord
name: A. C. Huizink
name: R. Beijers
name: C. De Weerth
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 12. Description of power analysis.
Compositional Synthesis via a Convex Parameterization of Assume-Guarantee Contracts
Creators: name: Ghasemi, Kasra
name: Sadraddini, Sadra
name: Belta, Calin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We develop an assume-guarantee framework for control of large scale linear (time-varying) systems from finite-time reach and avoid or infinite-time invariance specifications. The contracts describe the admissible set of states and controls for individual subsystems. A set of contracts compose correctly if mutual assumptions and guarantees match in a way that we formalize. We propose a rich parameterization of contracts such that the set of parameters that compose correctly is convex. Moreover, we design a potential function of parameters that describes the distance of contracts from a correct composition. Thus, the verification and synthesis for the aggregate system are broken to solving small convex programs for individual subsystems, where correctness is ultimately achieved in a compositional way. Illustrative examples demonstrate the scalability of our method.
Testing Lorentz Invariance with GRB021206
Creators: name: Boggs, Steven E.
name: Wunderer, Cornelia B.
name: Hurley, Kevin
name: Coburn, Wayne
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Since the discovery of the cosmological origin of GRBs there has been growing interest in using these transient events to probe the quantum gravity energy scale in the range 10^16--10^19 GeV, up to the Planck mass scale. This energy scale can manifest itself through a measurable modification in the electromagnetic radiation dispersion relation for high energy photons originating from cosmological distances. We have used data from the gamma-ray burst (GRB) of 6 December 2002 (GRB021206) to place an upper bound on the energy dispersion of the speed of light. The limit on the first-order quantum gravity effects derived from this single GRB indicate that the energy scale is in excess of 1.8x10^17 GeV. We discuss a program to further constrain the energy scale by systematically studying such GRBs.
description: 10 pages, 3 figures, accepted for publication in ApJL
Additional file 1 of Characteristics of landslides triggered by the 2013 ML6.5 Nantou, Taiwan, earthquake
Creators: name: Wu, Bing Sheng
name: Chuang, Ray Y.
name: Chen, Yi-Chin
name: Lin, Ya-Shien
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Neuroscience
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Figure S1. Two-week daily precipitation prior to the ML6.5 2013 Nantou earthquake at the weather station of Shuangdong near the epicenter.
$πK$ Scattering in Three Flavour ChPT
Creators: name: Bijnens, Johan
name: Dhonte, Pierre
name: Talavera, Pere
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the scattering lengths for the $πK$ processes in the three flavour Chiral Perturbation Theory (ChPT) framework at next-to-next-to-leading order (NNLO). The calculation has been performed analytically but we only include analytical results for the dependence on the low-energy constants (LECs) at NNLO due to the size of the expressions. These results, together with resonance estimates of the NNLO LECs are used to obtain constraints on the Zweig rule suppressed LECs at NLO, $L_4^r$ and $L_6^r$. Contrary to expectations from NLO order calculations we find them to be compatible with zero. We do a preliminary study of combining the results from $ππ$ scattering, $πK$ scattering and the scalar form-factors and find only a marginal compatibility with all experimental/dispersive input data.
description: 23 pages
The Physical and Mechanical Properties of Natural Fault Zones in Basaltic Rocks
Creators: name: Bamberg, Bob
Publisher: name: University of Leicester
Year: 2024
Subjects: Uncategorized

description: Faults represent a critical heterogeneity in basaltic sequences, which are gaining importance as potential sites for geothermal heat extraction and carbon storage. The processes controlling the behaviour of such faults at depth remain poorly constrained. The purpose of this research is to develop an integrated model for upper-crustal fault evolution in basalts, based on detailed structural, petrological, and hydromechanical characterisation of passively exhumed fault zones in the Faroe Islands.
Faults record strain localisation from incipient decametre-wide zones comprising networks of Riedel shears, into high strain, metre-wide fault cores. These contain multiple cataclastic shear bands enclosing low-strain lenses of hydrothermal breccias and/or tabular veins, indicating significant late-stage dilatation. Abundant overprinting fault rock assemblages record episodic fault zone reorganisation and reworking of fault rocks. Fluid-mediated alteration leads to replacement of the tholeiitic basalt protolith, dominated by plagioclase, pyroxene, and volcanic glass, by zeolite-smectite-pyroxene assemblages in and around the fault core. Alteration and mineralisation increase velocity-strengthening behaviour within the fault core, while frictional strength and permeability are reduced by alteration and enhanced by mineralisation. The damage zone is relatively strong and permeable, and encloses a fault core comprising weak and impermeable cataclastic shear bands and lenses of strong and more permeable hydrothermal breccias. Strength recovery between slip events is minimal. In such a configuration, shear on impermeable cataclasites may lead to transient fluid pressurisation within the slip zone, promoting episodic hydrofracture and triggering slow slip events. Acceleration to seismic slip rates is inhibited by velocity-strengthening behaviour in the fault core. Strengthening by cementation following hydrofracture may drive slip zone locking and migration into weaker structures.
Shallow basalt-hosted faults in the Faroe Islands record hydrofracture events punctuating periods of aseismic cataclastic creep within a widening slip zone. These findings highlight the importance of constraining the natural heterogeneity and distribution of fault rock properties, as they have significant implications for fault behaviour.
The glitches of the Anomalous X-ray Pulsar 1RXS J170849.0--400910
Creators: name: Dall'Osso, S.
name: Israel, G. L.
name: Stella, L.
name: Possenti, A.
name: Perozzi, E.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on a timing analysis of archival observations of the Anomalous X-ray Pulsar 1RXSJ170849.0-400910 made with the RXTE Proportional Counter Array. We detect a new large glitch (Delta nu / nu ~ 3 x 10^-6) which occurred between 2001 March 27 and 2001 May 6, with an associated large increase in the spin-down rate (Delta nudot/nudot ~ 0.3). The short time (1.5 yrs) elapsed from the previously detected glitch and the large amplitude of the new spin-up place this source among the most frequent glitchers, with large average glitch amplitudes, similar to those of the Vela pulsar. The source shows different recoveries after the glitches: in the first one it is well described by a long term linear trend similar to those seen in Vela-like glitches; in the second case the recovery is considerably faster and is better described by an exponential plus a fractional change in the long-term spin-down rate of the order of 1%. No recovery of the latter is detected but additional observations are necessary to confirm this result. Observed glitch properties are compared to those of radio pulsar glitches; current models are discussed in light of our results. It appears that glitches may represent yet another peculiarity of AXPs. Starquake-based models appear to be prefered on qualitative grounds. Alternative models can be applied to individual glitches but fail in explaining both. Thus the two events may as well arise from two different mechanisms.
description: Accepted for publication in ApJ Main Journal on August 20, minor changes after referee's report. 27 pages and 6 figures
A Cost Effective Environmentally Adjusted Performance Indicator
Creators: name: Common, M.
name: Common, M.
Publisher: name: Unknown
Year: 1993
Subjects: Environmental Economics and Policy

description: It is not possible to measure sustainable national income, and attempts to do so will consume non-trivial quantities of human and financial resources. There is a manifest desire for single number indicators of national economic performance adjusted for environmental impact. An approach is proposed which would exploit existing data sources, and which is, therefore, inexpensive. Results are reported which revise existing economic performance rankings.
Crystalline Electric-Field Excitations in Quantum Spin Liquids Candidate $NaYbSe_{2}$
Creators: name: Zhang, Zheng
name: Ma, Xiaoli
name: Li, Jianshu
name: Wang, Guohua
name: Adroja, D. T.
name: Perring, T. G.
name: Liu, Weiwei
name: Jin, Feng
name: Ji, Jianting
name: Wang, Yimeng
name: Wang, Xiaoqun
name: Ma, Jie
name: Zhang, Qingming
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Very recently we revealed a large family of triangular lattice quantum spin liquid candidates named rare-earth chalcogenides, which features a high-symmetry structure without structural/charge disorders and spin impurities, and may serve as an ideal platform exploring spin liquid physics. The knowledge of crystalline electric-field (CEF) excitations is an essential step to explore the fundamental magnetism of rare-earth spin systems. Here we employed inelastic neutron scattering (INS) and Raman scattering (RS) to carry out a comprehensive CFE investigation on $NaYbSe_{2}$, a promising representative of the family. By comparison with its nonmagnetic compound $NaLuSe_{2}$, we are able to identify the CEF excitations at 15.8, 24.3 and 30.5 meV at 5K. The selected cuts of the INS spectra are well re-produced with a large anisotropy of $g$ factors ($g_{ab}:g_{c}\sim3:1$). Further, the CEF excitations are explained well by our calculations based on the point charge model. Interestingly, $NaYbSe_{2}$ exhibits an unusual CEF shift to higher energies with increasing temperatures, and the Raman mode close to the first CEF excitation shows an anomalously large softening with decreasing temperatures. The absence of the anomalies in $NaLuSe_{2}$ clearly demonstrates a CEF-phonon coupling not reported in the family. It can be understood in term of the weaker electronegativity of Se. The fact that the smallest first CEF excitation in the sub-family of $NaYbCh_{2}$ is $\sim$ 180K (Ch=O, S, Se), guarantees that the sub-family can be strictly described with an effective S=1/2 picture at sufficiently low temperatures. Interestingly the CEF-phonon coupling revealed here may present alternative possibilities to manipulate the spin systems.
description: 7 pages, 4 figures, supplementary material provided, error corrected in Figure 4
title: Open Educational Resources and Language Teachers' Professional Practice: A Case Study of Engagement With OER
Creators: name: Beaven, Tita
Publisher: name: The Open University
Year: 2015

description: Open Educational Resources (OER) are educational materials that are in the public domain or published with an open license. The OER lifecycle involves users locating, adapting, reusing and sharing OER. In the past fifteen years considerable funding has been devoted to creating OER repositories; however, it appears that the promise of OER has not been fully realised, and the anticipated adoption, reworking and sharing has had only limited success. There have been very few studies of 'real world' reuse of OER, and there have been questions about whether reuse is indeed occurring at all. This case study explores engagement with OER from a specific OER collection, LORO (Languages Open Resources Online, www.loro.open.ac.uk), by teachers on two blended beginners' language courses at The Open University, UK. It fills a gap in research by investigating the teachers' practices in order to ascertain whether they follow the steps in the OER lifecycle, as this might have a positive influence in their teaching. The research also seeks to understand the often tacit professional knowledge that teachers draw on when engaging with OER, as it has been argued that, through open educational practices, this tacit knowledge can be made explicit, and therefore useable and shareable, and thus contribute to enhancing teaching quality. The study found that teachers engage with the steps of the OER lifecycle: they find and reuse resources in their teaching, and adapt them to suit their specific requirements. Most of the teachers in the study mix resources they find with others they create themselves. Although they do not share them back through LORO, they do share them through other, less public means, especially with colleagues and students. Some of the teachers' cognitive, affective and systemic tacit professional knowledge was also made explicit, a first step towards making it usable and shareable.