cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A correlator product state study of molecular magnetism in the giant Keplerate Mo72Fe30
Creators: name: Neuscamman, Eric
name: Chan, Garnet Kin-Lic
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied the properties of the giant Keplerate molecular magnet Mo72Fe30, as a function of applied magnetic field, using the correlator product state (CPS) tensor network ansatz. The magnet is modeled with an S = 5/2 antiferromagnetic Heisenberg Hamiltonian on the 30-site icosidodecahedron lattice, a model for which exact diagonalization is infeasible. The CPS ansatz produces significant improvements in variational energies relative to previous studies using the density matrix renormalization group, a result of its superior ability to handle strong correlation in two dimensional spin systems. The CPS results reaffirm that the ground state energies adhere qualitatively to the parabolic progression of the rotational band model (RBM), but show important deviations near 1/3 of the saturation field. These deviations predict anomalous behavior in the differential magnetization and heat capacity that cannot be explained by the RBM alone. Finally, we show that these energetic deviations originate from a qualitative change in the ground state that resembles a finite size analogue of a phase transition.
description: 11 pages, 2 tables, 10 figures
Chiral Magnets from String Theory
Creators: name: Amari, Yuki
name: Nitta, Muneto
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chiral magnets with the Dzyaloshinskii-Moriya (DM) interaction have received quite an intensive focus in condensed matter physics because of the presence of a chiral soliton lattice (CSL), an array of magnetic domain walls and anti-domain walls, and magnetic skyrmions. In this paper, we realize chiral magnets in type-IIA/B string theory by using the Hanany-Witten brane configuration (consisting of D3, D5 and NS5-branes) and the fractional D2 and D6 branes on the Eguchi-Hanson manifold. In the both cases, we put constant non-Abelian magnetic fluxes on flavor D-branes, turning them into magnetized D-branes. The $O(3)$ sigma model with an easy-axis or easy-plane potential and the DM interaction is realized on the worldvolume of the color D-branes. The ground state is the ferromagnetic (uniform) phase and the color D-brane is straight when the DM interaction is small compared with the scalar mass. However, when the DM interaction is larger, the uniform state is no longer stable and the ground state is inhomogeneous: the CSL phases and helimagnetic phase. In this case, the color D-brane is no longer straight but is snaky (zigzag) when the DM interaction is smaller (larger) than a critical value. A magnetic domain wall in the ferromagnetic phase is realized as a kinky D-brane. We further construct magnetic skyrmions in the ferromagnetic phase, realized as D1-branes (fractional D0-branes) in the former (latter) configuration. We see that the host D2-brane is bent around the position of a D0-brane as a magnetic skyrmion. Finally, we construct, in the ferromagnetic phase, domain-wall skyrmions, that is, composite states of a domain wall and skyrmions, and find that the domain wall is no longer flat in the vicinity of the skyrmion. Consequently, a kinky D2-brane worldvolume is pulled or pushed in the vicinity of the D0-brane depending on the sign of the skyrmion topological charge.
description: 37 pages, 15 figures, v2: typos corrected, v3: references added, published version
Additional file 2 of Development of a novel immune-related lncRNA prognostic signature for patients with hepatocellular carcinoma
Creators: name: Li, Rui
name: Jin, Chen
name: Zhao, Weiheng
name: Liang, Rui
name: Xiong, Huihua
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2: Supplementary Table 2. 76 prognostic associated lncRNAs.
Mismatches and criminal justice policy: The case of GPS for domestic violence
Creators: name: Ibarra, Peter
name: Gur, Oren M.
name: Erez, Edna
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: subject: Law
subject: FOS: Law

description: Mismatches are incongruencies between programmatic policies and working practices that engender counter-productive dynamics or outcomes relative to aspirations. The present article addresses electronic monitoring programs for domestic violence/intimate partner violence, examining how mismatches may emerge during their implementation or later. Electronic monitoring programs aim to surveil and deter defendants facing domestic violence/intimate partner violence–related charges during court-supervised release, with the aim of enhancing victim safety. Analysis of qualitative and survey data from a national (US) study suggests that domestic violence/intimate partner violence–focused strategies reliant on surveillance technology may be prone to generating mismatches rooted in discrepancies between victims’ expectations, defendant risk profiles, and program operations. Policy implications of mismatches in victim-focused initiatives are considered.
Spectral properties of bipolar surfaces to Otsuki tori
Creators: name: Karpukhin, Mikhail A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58E11, 58J50

description: The $i$-th eigenvalue $λ_i$ of the Laplace-Beltrami operator on a surface can be considered as a functional on the space of all Riemannian metrics of unit volume on this surface. Surprisingly only few examples of extremal metrics for these functionals are known. In the present paper a new countable family of extremal metrics on the torus is provided.
description: arXiv admin note: text overlap with arXiv:1108.5160 by other authors. References added
Broodstock conditioning and larval rearing of the geoduck clam (Panopea generosa Gould, 1850)
Creators: name: Marshall, Robert
Publisher: name: University of British Columbia
Year: 2012

description: The aim of this thesis was to identify conditions that optimize Panopea generosa broodstock conditioning and larval growth and survival in a hatchery setting. A series of experiments subjected broodstock (adults) to various levels of key factors [i.e. temperature (Ch. 2), salinity (Ch. 3) and nutrition [ration (Ch. 4) and feed type (Ch. 5)]. A larval experiment examined the effects of stocking density and feed level combinations on growth and survival (Ch. 6). Broodstock responses were quantified using gravimetric (condition and gonadosomatic indices) and histological techniques (development classification, volume fractions and oocyte diameter). Survival and spawning rates were also examined. Of the temperatures tested (7, 11, 15 and 19˚C) 11˚C had the highest spawning rates (% individuals) and more oocytes follicle⁻¹, than 15 and 19˚C. At 7˚C gonadosomatic indices were highest but this temperature did not produce spawning clams. Gonads degenerated at 19˚C. Among salinities of 17, 20, 24, and 29 gonad sheath thickness and area occupied by gametes increased at 29 but not at 24. Salinities of 17 and 20 were associated with fungal infection and had high mortality rates after 26 d exposure. With higher ration treatments (up to 7.2 × 10⁹ cells clam⁻¹ d⁻¹ [Isochrysis sp. (TISO) and Chaetoceros muelleri, 50:50 by cell count] clams became more spawned. Very high rations (10.0 × 10 ⁹ cells clam⁻¹ d⁻¹) increased mortality. Algal type [Dunaliella tertiolecta, (TISO), C. muelleri and TISO + C. muelleri) had no measurable impact on gonad development based on any of the response variables used. The larval experiment showed that there was a significant interaction between stocking density and feed level with respect to growth and survival. The most efficient treatment was 10 larvae ml⁻¹ fed 5,000 cells larva⁻¹ (TISO) as it had among the highest growth (3.75 μm day⁻¹) and survival (42%) rates but low algal requirements. These findings illustrate reproductive responses of P. generosa that can be applied to a hatchery management strategy.
Comprehension of implied meaning in Chinese second language listening
Creators: name: Zhang, Jiafan
Publisher: name: Arts
Year: 2022
Subjects: subject: Chinese listening
subject: Implied meanings
subject: Heritage language
subject: Non-heritage language
subject: Education
subject: Education--Bilingual and Multicultural
subject: Language
subject: Literature

description: Listening comprehension is a crucial skill for second language (L2) communication and acquisition. However, listening has received less attention than reading given the transient nature of speech signals and the intangible cognitive processes involved in it. The current study investigates how Chinese L2 learners deal with implied meanings in listening comprehension and whether heritage language affects the comprehension of implied meanings. Both quantitative and qualitative data were collected by means of an implied meaning test and stimulated recall interviews. 22 heritage and 24 non-heritage Chinese learners participated in this study. Results show that Chinese L2 learners in this study have good abilities in understanding implied meanings in listening and that heritage learner outperformed non-heritage language learners in the comprehension of implied meanings. Learners in this study used various clues to different extents to deduce implied meanings in listening. The most frequently used clue is semantics. Results show both similarities and differences in the use of clues by heritage and non-heritage learners. The results also indicate that background knowledge and semantic clues are positively related to the accuracy in comprehending implied meanings. Pedagogical implications are provided in light of the findings of the study.
Chemical evolution of the Milky Way: the origin of phosphorus
Creators: name: Cescutti, G.
name: Matteucci, F.
name: Caffau, E.
name: François, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Recently, for the first time the abundance of P has been measured in disk stars. This provides the opportunity of comparing the observed abundances with predictions from theoretical models. Aims. We aim at predicting the chemical evolution of P in the Milky Way and compare our results with the observed P abundances in disk stars in order to put constraints on the P nucleosynthesis. Methods. To do that we adopt the two-infall model of galactic chemical evolution, which is a good model for the Milky Way, and compute the evolution of the abundances of P and Fe. We adopt stellar yields for these elements from different sources. The element P should have been formed mainly in Type II supernovae. Finally, Fe is mainly produced by Type Ia supernovae. Results. Our results confirm that to reproduce the observed trend of [P/Fe] vs. [Fe/H] in disk stars, P is formed mainly in massive stars. However, none of the available yields for P can reproduce the solar abundance of this element. In other words, to reproduce the data one should assume that massive stars produce more P than predicted by a factor of ~ 3. Conclusions. We conclude that all the available yields of P from massive stars are largely underestimated and that nucleosynthesis calculations should be revised. We also predict the [P/Fe] expected in halo stars.
description: Accepted for publication in A&A (minor changes with respect to the submitted version)
The Impact of Green Supply Chain Management on Climate Change: Cursory Glance on the Food Industry
Creators: name: Abdurahim Zai, Mohammad Edris
name: Amani, Naseebullah
Publisher: name: figshare
Year: 2023
Subjects: Environmental politics
Environmentally sustainable engineering
Environmental sociology
Environmental crime
Environmental philosophy
Environmental biogeochemistry
Environmental law
Geophysical and environmental fluid flows
Environmental rehabilitation and restoration
Environmental communication
Environmental studies in animal production
Environmental anthropology
Global and planetary environmental engineering
Environmental biotechnology not elsewhere classified
Environmental nanotechnology and nanometrology
Other environmental sciences not elsewhere classified
Pacific Peoples environmental knowledges
Pacific Peoples environmental conservation
Environmental epidemiology
Environmental geography
Environmental education curriculum and pedagogy
Environmental history
Environmental management
Environmental marine biotechnology

description: The study assesses and ascertains how food industries can use effective green supply chain practices to lessen the effects of climate change. Positioning the supply network and assigning strategic objectives of the study will open insights into the integration of climate change into green supply chain management in the food industry. Implementing green supply chains can result in a dynamic capability that shall enable organizations to respond to uncertain and changing business environments and sustain their position in the market. The outcome can lead organizations to work efficiently, the attainment of which can be regarded as the key to sustaining businesses and competitive advantage. The primary focus of the study is to analyze and ascertain how food industries can use effective green supply chain practices to lessen the effects of climate change.
Effects of transition metal substitutions on the incommensurability and spin fluctuations in BaFe2As2 by elastic and inelastic neutron scattering
Creators: name: Kim, M. G.
name: Lamsal, J.
name: Heitmann, T. W.
name: Tucker, G. S.
name: Pratt, D. K.
name: Khan, S. N.
name: Lee, Y. B.
name: Alam, A.
name: Thaler, A.
name: Ni, N.
name: Ran, S.
name: Bud'ko, S. L.
name: Marty, K. J.
name: Lumsden, M. D.
name: Canfield, P. C.
name: Harmon, B. N.
name: Johnson, D. D.
name: Kreyssig, A.
name: McQueeney, R. J.
name: Goldman, A. I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin fluctuation spectra from nonsuperconducting Cu-substituted, and superconducting Co-substituted, BaFe2As2 are compared quantitatively by inelastic neutron scattering measurements and are found to be indis- tinguishable. Whereas diffraction studies show the appearance of incommensurate spin-density wave order in Co and Ni substituted samples, the magnetic phase diagram for Cu substitution does not display incommensu- rate order, demonstrating that simple electron counting based on rigid-band concepts is invalid. These results, supported by theoretical calculations, suggest that substitutional impurity effects in the Fe plane play a signifi- cant role in controlling magnetism and the appearance of superconductivity, with Cu distinguished by enhanced impurity scattering and split-band behavior.
description: 5 pages, 5 figures, Major change in the manuscript
(De) Securitizing the Arctic? Functional actors and the shaping of Canadian Arctic security policy.
Creators: name: Dean, Ryan
Publisher: name: Arts
Year: 2022
Subjects: subject: Arctic
subject: Exceptionalism
subject: Policy
subject: "Northern Strategy"
subject: Stewardship
subject: Security
subject: Securitization
subject: "Thinning Ice"
subject: "Use it or lose it"
subject: Education--Social Sciences
subject: Political Science--International Law and Relations
subject: Public Administration

description: This dissertation examines the development of modern Arctic security policy. It is a longitudinal investigation that begins in 1985 when Canada had an Arctic policy of “ad hocery” and ends in 2010 with the completion of an integrated policy. It investigates how the threat perceptions and policy prescriptions of various domestic actors were transmitted into government policy, moving some conceptualizations of security up or to the top of the agenda whilst moving others down or off of it. Second generation securitization theory is systematically applied to a series of exceptional case studies that best track the change over time in Arctic security policy. A mixed methodology of process tracing and discourse analysis interrogate the creation and changing of context, and how context was critical in setting the conditions for shaping policy. The dissertation finds that context matters in the securitization process, largely being created by securitization theory’s undertheorized functional actor. These actors provide policy options for those with political power to securitize into government policy. The prescriptions these actors offered were increasingly complex, stretching across the breadth and depth of security over time. This dissertation tells a story that comes full circle, beginning and ending with Canada’s effort to fold the military into its developing Arctic security policy.
The Role of Knowledge Management in Achieving Strategic Vision in Afghanistan Telecom Companies
Creators: name: Abdurahim Zai, Mohammad Edris
Publisher: name: figshare
Year: 2023
Subjects: Computer graphics
Computer gaming and animation
Fairness, accountability, transparency, trust and ethics of computer systems
Computer aided design
Human-computer interaction
Computer vision
Computer vision and multimedia computation not elsewhere classified

description: Telecommunication has been immensely growing in the last few years. Knowledge has long been recognized as an important thing for living. Therefore, managing knowledge in an organization has been interesting since it can provide a competitive advantage in the complex world. In the globalization, one has to confront with uncertainty of business environment, high competitiveness, and jumping from production-based to knowledge-based economy. Thus, knowledge management becomes acceptable as a competitive weapon in this situation. While organizations are interested in knowledge management to increase their competitiveness sustainably, there is a need to study the critical success factors for KM implementation. These will ensure that important issues, activities, and practices are paid attention during design or implementation of KM. 50Due to a subjective manner of KM, there is no common or standard ways in a KM practice. KM is however, related to many parts, people in an organization that make managing knowledge quite complex. To make it more confident to design and implement KM in the right way, many issues should be addressed that allows implementers to pay attention to them.
Machine Learning based Parameter Sensitivity of Regional Climate Models -- A Case Study of the WRF Model for Heat Extremes over Southeast Australia
Creators: name: Reddy, P. Jyoteeshkumar
name: Chinta, Sandeep
name: Matear, Richard
name: Taylor, John
name: Baki, Harish
name: Thatcher, Marcus
name: Kala, Jatin
name: Sharples, Jason
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Heatwaves and bushfires cause substantial impacts on society and ecosystems across the globe. Accurate information of heat extremes is needed to support the development of actionable mitigation and adaptation strategies. Regional climate models are commonly used to better understand the dynamics of these events. These models have very large input parameter sets, and the parameters within the physics schemes substantially influence the model's performance. However, parameter sensitivity analysis (SA) of regional models for heat extremes is largely unexplored. Here, we focus on the southeast Australian region, one of the global hotspots of heat extremes. In southeast Australia Weather Research and Forecasting (WRF) model is the widely used regional model to simulate extreme weather events across the region. Hence in this study, we focus on the sensitivity of WRF model parameters to surface meteorological variables such as temperature, relative humidity, and wind speed during two extreme heat events over southeast Australia. Due to the presence of multiple parameters and their complex relationship with output variables, a machine learning (ML) surrogate-based global sensitivity analysis method is considered for the SA. The ML surrogate-based Sobol SA is used to identify the sensitivity of 24 adjustable parameters in seven different physics schemes of the WRF model. Results show that out of these 24, only three parameters, namely the scattering tuning parameter, multiplier of saturated soil water content, and profile shape exponent in the momentum diffusivity coefficient, are important for the considered meteorological variables. These SA results are consistent for the two different extreme heat events. Further, we investigated the physical significance of sensitive parameters. This study's results will help in further optimising WRF parameters to improve model simulation.
Circular Optical Nanoantennas: An Analytical Theory
Creators: name: Filter, Robert
name: Qi, Jing
name: Rockstuhl, Carsten
name: Lederer, Falk
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: An entirely analytical theory is provided for describing the resonance properties of optical nanoantennas made of a stack of homogeneous discs, i.e. circular patch nanoantennas. It consists in analytically calculating the phase accumulation of surface plasmon polaritons across the resonator and an additional contribution from the complex reflection coefficient at the antenna termination. This makes the theory self-contained with no need for fitting parameters. The very antenna resonances are then explained by a simple Fabry-Perot resonator model. Predictions are compared to rigorous simulations and show excellent agreement. Using this analytical model, circular antennas can be tuned by varying the composition of the stack.
Additional file 4: of Exploring the emergence and evolution of population patterns of leisure-time physical activity through agent-based modelling
Creators: name: Garcia, Leandro
name: Diez Roux, Ana
name: Martins, André
name: Yang, Yong
name: Florindo, Alex
Publisher: name: figshare
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy

description: Results of global sensitivity analysis (year 10). (PDF 712 kb)
Coleoptera of Alberta: Visual Guide to Common Terrestrial Families (Adults)
Creators: name: Carson, Arminty
name: Gee, Gabriella
name: Summers, Mindi
Publisher: name: University of Calgary
Year: 2022
Subjects: Coleoptera
beetle
insect
entomology
guide
Alberta

description: Identification Guider
description: A visual guide to common Coleoptera families found in Alberta created for undergraduate students and those new to insect identification. Visual images and descriptions are provided for key features and terminology needed to identify common beetles to family. We welcome recommendations for additions and updates from the entomological community.
Generalized Swiss-Cheese Cosmologies II: Spherical Dust
Creators: name: Grenon, Cédric
name: Lake, Kayll
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The generalized Swiss - cheese model, consisting of a Lemaître - Tolman (inhomogeneous dust) region matched, by way of a comoving boundary surface, onto a Robertson-Walker background of homogeneous dust, has become a standard construction in modern cosmology. Here we ask if this construction can be made more realistic by introducing some evolution of the boundary surface. The answer we find is no. To maintain a boundary surface using the Darmois - Israel junction conditions, as opposed to the introduction of a surface layer, the boundary must remain exactly comoving. The options are to drop the assumption of dust or allow the development of surface layers. Either option fundamentally changes the original construction.
description: 5 pages revtex 4.1 Final form to appear in Phys. Rev. D
MOESM1 of Climate factors driven typhus group rickettsiosis incidence dynamics in Xishuangbanna Dai autonomous prefecture of Yunnan province in China, 2005â€“2017
Creators: name: Gao, Yuan
name: Niu, Yanlin
name: Sun, Wanwan
name: Liu, Keke
name: Liu, Xiaobo
name: Zhao, Ning
name: Yue, Yujuan
name: Wu, Haixia
name: Meng, Fengxia
name: Wang, Jun
name: Wang, Xueshuang
name: Liu, Qiyong
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Supplementary material 1: The PACF plots and residual deviation plots of two individual models. Supplementary material 2: The results of cross correlation function
Север и рынок. Формирование экономического порядка, Выпуск 32018
Creators: name: Кольский научный центр Российской академии наук
Publisher: name: Север и рынок. Формирование экономического порядка
Year: 2018

description: , Выпуск 32018
description: Журнал «Север и рынок: формирование экономического порядка» является одним из ведущих научных изданий по социальным и экономическим проблемам устойчивого развития российского Севера и Арктики. Важнейшим направлением публикуемых статей является анализ и прогнозирование динамики социально-экономических процессов в северных и арктических регионах с учетом влияния глобальных, национальных и региональных факторов, определяющих развитие территорий с экстремальными условиями жизнедеятельности и хозяйствования. Тематический спектр публикаций достаточно обширен и включает вопросы рационального экологосбалансированного природопользования, промышленной и инновационной политики, социальной политики, финансового регулирования и межбюджетных отношений, формирования социальной, производственной, энергетической и транспортной  инфраструктуры, развития международного сотрудничества на Севере и в Арктике, в том числе в рамках Баренцева Евро-Арктического региона.
Boundary effects on the thermal stability of a black hole at the centre of a conducting spherical shell
Creators: name: Moreira, E. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper reports calculations and analysis of the effects of a perfect conducting wall of a very large spherical shell on the stable thermodynamic equilibrium of a black hole sitting at the centre of the shell which is filled with Electromagnetic blackbody radiation. A parallel is drawn with the case where electromagnetic is replaced by scalar blackbody radiation with Dirichlet or Neumann boundary conditions on the wall. It is found that the value of the shell radius above which only blackbody radiation remains in stable thermodynamic equilibrium can be considerably affected by vacuum polarization due to the presence of the wall.
description: 10 pages, no figures. This version, except for stylistic changes, fits with the published version in PRD
Voltage gated calcium channels – molecular targets for trigeminal neuralgia
Creators: name: Gambeta De Andrade, Eder
Publisher: name: Cumming School of Medicine
Year: 2022
Subjects: subject: Neuroscience

description: Trigeminal neuralgia (TN) is a rare debilitating disease which is characterised by excruciating facial pain and has a higher incidence in women. Recent studies demonstrated that some TN patients present mutations in genes that encode different voltage-gated calcium channels, a class of ion channel that are important players in pain pathways. Among them, mutations in the genes CACANA1A, CACNA1G, and CACNA1H, that encode CaV2.1, CaV3.1 and CaV3.2 channels, respectively, were investigated. First, we characterised the biophysical properties of these mutations using whole-cell patch-clamp recordings in tsA-201 cells. Second, we investigated the role of CaV3.2 channels in an animal model of trigeminal neuropathic pain. Finally, we explored the molecular mechanism of a selective T-type calcium channel blocker. Our data demonstrated a mix of loss- and gain-of-function in the CaV2.1 channel mutant P2455H, and a gain-of-function in a CaV3.1 channel variant (R706Q). For the CaV3.2 channel mutants, some presented a gain-of-function (G563R, P566T, P1605H), some a loss-of-function (E281K, H526Y, R1736C), and one exhibited no difference to wild type channels (D1779Y). These changes in channel function may affect pain pathways in the trigeminal system, thus potentially contributing to the pain phenotype. Considering that several studies demonstrated that CaV3.2 channels are dysregulated in models of chronic pain, we assessed the function of this channel in the constriction of the infraorbital nerve (CION) model. Both female and male CION mice developed facial thermal heat hyperalgesia. Treatment with the pan T-type blocker Z944 was able to produce an antihyperalgesic effect in CION mice, however its effect was absent in CaV3.2-/- mice. This suggests that Z944 targets CaV3.2 channels in the CION model. ELISA analysis revealed increased CaV3.2 channel expression in the spinal trigeminal subnucleus caudalis. Finally, the T-type channel blocker DX-416 was able to block CaV3.2 calcium channel current, however its effect is not altered by mutations in putative sites for A803467. Altogether, the present study demonstrates an important role of voltage-gated calcium channels in trigeminal pain.
Axial anomaly and the interplay of quark loops with pseudoscalar and vector mesons in the gamma* --> pi+ pi0 pi- process
Creators: name: Benic, Sanjin
name: Klabucar, Dubravko
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Motivated by the ongoing measurements of the Primakoff process pi- gamma* --> pi- pi0 by COMPASS collaboration at CERN, the transition form factor for the canonical anomalous process gamma* --> pi+ pi0 pi- is calculated in a constituent quark loop model. The simplest contribution to this process is the quark "box" amplitude. In the present paper we also explicitly include the vector meson degrees of freedom, i.e., the rho and the omega, thus giving rise to additional, resonant contributions. We find that in order to satisfy the axial anomaly result, a further subtraction in the resonant part is needed. The results are then compared with the vector meson dominance model as well as the Dyson--Schwinger calculations, the chiral perturbation theory result, and the available data.
description: 21 pages, 8 eps figures, revtex4, a factor of 2 in resonant contribution corrected, three figures revised and one added, discussion enlarged and references added
Density functional theory studies of optically active defects in two-dimensional hexagonal boron nitride
Creators: name: Sharman, Kenneth
Publisher: name: Science
Year: 2022
Subjects: subject: Single-photon sources
subject: Physics--Atomic
subject: Condensed Matter
subject: Optics

description: Defects in solid-state materials are promising candidates to serve as single-photon emitters in forthcoming quantum technologies. In particular, defects in hexagonal boron nitride (h-BN) have generated significant interest due to their attractive optical and spin properties. Motivated by the desire to develop single-photon sources which can operate at room temperature, we have performed two density functional theory (DFT) studies of quantum defects in two-dimensional h-BN. Recent studies suggest that carbon trimer defects in h-BN might be responsible for single-photon emission in the visible spectral range. In our first study, we combine group theory and DFT calculations to predict properties of the neutral C2CN carbon trimer defect. We calculate the ground and excited state energies, and the radiative and non-radiative rates associated with several transitions. The results of our calculations are then used to simulate an optically detected magnetic resonance experiment. Our findings are important as experimental observations can be compared with our theoretical predictions to aide in the identification of the defects responsible for observed single-photon emission. Our second study is motivated by recent observations of Fourier transform (FT) limited photons emitted from h-BN flakes at room temperature. The mechanism responsible for the narrow lines has been suggested to be a decoupling of the defect from in-plane phonons due to an out-of-plane distortion of the emitter's orbitals. All decoupled emitters produce photons that are directed in-plane, suggesting that the transition dipoles are perpendicular to the h-BN plane. Motivated by the promise of an efficient and scalable source of indistinguishable photons that can operate at room temperature, we have developed an approach using DFT to determine the electron-phonon coupling for defects that have in- and out-of-plane transition dipole moments. We find no indication that an out-of-plane transition dipole is sufficient to obtain FT-limited photons at room temperature. Our work also provides direction to future DFT software developments and adds to the growing list of calculations relevant to researchers in the field of solid-state quantum information processing.
Exploiting stochastic locality in lattice QCD: hadronic observables and their uncertainties
Creators: name: Bruno, Mattia
name: Cè, Marco
name: Francis, Anthony
name: Fritzsch, Patrick
name: Green, Jeremy R.
name: Hansen, Maxwell T.
name: Rago, Antonio
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Because of the mass gap, lattice QCD simulations exhibit stochastic locality: distant regions of the lattice fluctuate independently. There is a long history of exploiting this to increase statistics by obtaining multiple spatially-separated samples from each gauge field; in the extreme case, we arrive at the master-field approach in which a single gauge field is used. Here we develop techniques for studying hadronic observables using position-space correlators, which are more localized, and compare with the standard time-momentum representation. We also adapt methods for estimating the variance of an observable from autocorrelated Monte Carlo samples to the case of correlated spatially-separated samples.
description: 45 pages, 16 figures, 3 tables. v2: version accepted for publication in JHEP
Symmetries and solutions of field equations of axion electrodynamics
Creators: name: Nikitin, A. G.
name: Kuriksha, Oksana
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Qxx, 81Rxx

description: The group classification of models of axion electrodynamics with arbitrary self interaction of axionic field is carried out. It is shown that extensions of the basic Poincaré invariance of these models appear only for constant and exponential interactions. The related conservation laws are discussed. Using the Inönü-Wigner contraction the non-relativistic limit of equations of axion electrodynamics is found. An extended class of exact solutions for the electromagnetic and axion fields is obtained. Among them there are solutions including up to six arbitrary functions. In particular, solutions which describe propagation with velocities faster than the velocity of light are found. These solutions are smooth and bounded functions which correspond to positive definite and bounded energy density.
description: New section 6 ia added where the superluminal propagation velocities are discussed
Additional file 3 of Development of a novel immune-related lncRNA prognostic signature for patients with hepatocellular carcinoma
Creators: name: Li, Rui
name: Jin, Chen
name: Zhao, Weiheng
name: Liang, Rui
name: Xiong, Huihua
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3: Supplementary Figure 1. (A) The best-fit OS-related lncRNAs were chosen by Lasso regression analysis. (B) The Lasso regression was performed with the optimal value of λ. (C-D) Distribution of risk scores, survival status. Supplementary Figure 2. (A-D) PCA among all genes, immune genes, immune LncRNA, and risk immune LncRNA.
Fostering Multicultural Understandings within Global Online Higher Education Learning Environments
Creators: name: Naidoo, Umeka
Publisher: name: Werklund School of Education
Year: 2022
Subjects: subject: online learning
subject: culture
subject: learner engagement
subject: virtual ethnography
subject: Education--Adult and Continuing

description: With the ever-growing use of the internet, many higher education institutions are now offering online education to students from anywhere in the world. While online learning provides learners flexibility in pursuing their educational goals, the importance of addressing cultural factors is also integral to learner engagement. This research explored the influence of culture in online learning environments through the examination of Geert Hofstede’s (2017) cultural framework. The study was undertaken to examine how socio-cultural factors (i.e., beliefs, languages, and value systems) influence learner engagement in online learning environments in higher education. The study was conducted using a virtual ethnographic approach that not only underscored the assumptions in which traditional ethnography is rooted, but also placed emphasis on features of communications technology and its implications for conducting online research. A virtual ethnographic approach using individual interviews with study participants (n = 11) allowed for developing rich descriptions regarding the online cultural learning context. Findings from the study have helped me identify implications for practice. Two key findings identified from the data included learner-to-instructor communication and the need for cultural understandings. These findings indicated that culture influences online learner experiences. However, this impact should not be undervalued or excessively overrated so as not to stereotype students’ cultures. A key implication for practice involves cultural responsiveness designed to enhance learner engagement. Fostering culturally responsive online learning environments should be supported institutionally and integrated in all areas of online learning strategy, including course design and course facilitation.
Generalized Second Law of Thermodynamics for FRW Cosmology with Power-Law Entropy Correction
Creators: name: Debnath, Ujjal
name: Chattopadhyay, Surajit
name: Hussain, Ibrar
name: Jamil, Mubasher
name: Myrzakulov, Ratbay
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we have considered the power law correction of entropy on the horizon. If the flat FRW Universe is filled with the n components fluid with interactions, the GSL of thermodynamics for apparent and event horizons have been investigated for equilibrium and non-equilibrium cases. If we consider a small perturbation around the de Sitter space-time, the general conditions of the validity of GSL have been found. Also if a phantom dominated Universe has a polelike type scale factor, the validity of GSL has also been analyzed. Further we have obtained constraints on the power-law parameter α in the phantom and quintessence dominated regimes. Finally we obtain conditions under which GSL breaks down in a cosmological background.
description: 10 pages
A Note on the Consistency Condition of Primordial Fluctuations
Creators: name: Senatore, Leonardo
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We show that the squeezed limit of (N+1)-point functions of primordial correlation functions in which one of the modes has a very small wavenumber can be inferred from the spatial variation of locally measured N-point function. We then show how in single clock inflation a long wavelength perturbation can be re-absorbed in the background cosmology and how in computing correlation functions the integrals of the interaction Hamiltonian are dominated by conformal times of order of the short wavelength modes, when the long mode is already outside of the horizon. This allows us to generalize the consistency condition for N-point functions to the case in which the short wavelength fluctuations are inside the horizon and derivatives acts on them. We further discuss the consistency condition in the soft internal squeezed limit in which in an (N+M)-point function with (N+M) short modes the sum of the first N modes is a very soft momentum. These results are very useful to study infrared effects in Inflation.
description: 19 pages, 2 figures
Asymptotics of the $s$-perimeter as $s\searrow 0$
Creators: name: Dipierro, Serena
name: Figalli, Alessio
name: Palatucci, Giampiero
name: Valdinoci, Enrico
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We deal with the asymptotic behavior of the $s$-perimeter of a set $E$ inside a domain $Ω$ as $s\searrow0$. We prove necessary and sufficient conditions for the existence of such limit, by also providing an explicit formulation in terms of the Lebesgue measure of $E$ and $Ω$. Moreover, we construct examples of sets for which the limit does not exist.
Additional file 13: of Downregulation of miR-133a-3p promotes prostate cancer bone metastasis via activating PI3K/AKT signaling
Creators: name: Tang, Yubo
name: Pan, Jincheng
name: Huang, Shuai
name: Peng, Xinsheng
name: Zou, Xuenong
name: Luo, Yongxiang
name: Ren, Dong
name: Zhang, Xin
name: Li, Ronggang
name: He, Peiheng
name: Wa, Qingde
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Figure S5. (A-C) Real-time PCR of BCL2, BCL-xL, Survivin and Mcl-1 in the indicated cells. Transcript levels were normalized by U6 expression. Error bars represent the mean ± s.d. of three independent experiments. *P < 0.05. (PDF 72 kb)
Analysis of Deep Domain Adaptation Methods for Brain Magnetic Resonance Image Segmentation
Creators: name: Saat, Parisa
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: deep learning
subject: domain adaptation
subject: magnetic resonance imaging
subject: neuroimaging
subject: segmentation
subject: brain
subject: Artificial Intelligence
subject: Computer Science
subject: Engineering
subject: Engineering--Biomedical

description: Accurate brain segmentation is critical for magnetic resonance imaging (MRI) analysis pipelines. Machine-learning-based brain MR image segmentation methods are among the state-of-the-art techniques for this task. Nevertheless, the segmentations produced by machine learning models often degrade in the presence of expected domain shifts between the test and train sets data distributions. These domain shifts are expected due to several factors, such as scanner hardware and software differences, technology updates, MRI acquisition parameters, and differences across the scanned populations. Domain adaptation (DA) methods can make machine learning models more resilient to these domain shifts. In this thesis, I investigated supervised and unsupervised deep domain adaptation methods for brain MRI segmentation. Two scenarios are investigated. In the first scenario, data shifts occur due to hardware and software differences across different MRI scanner vendors (General Electric, Philips, and Siemens). In the second scenario, data shifts occur due to differences in the scanned populations. The source brain MRI data comes from adults, while the target data corresponds to pediatric patients, whose brains are still developing. The main findings of this thesis are that there is not a single DA technique that consistently outperforms others, and hyperparameter tuning and computational times for these methods still need to be addressed before adopting these methods in clinical practice. Another important finding is that the DA techniques worked better for data shifts resulting from hardware and software differences across different MR scanner vendors than data shifts from population differences. The labeled data and source code used in this thesis were made publicly available and serve as a benchmark for evaluating DA methods for brain MRI segmentation.
Quantum Hall Effect and Semimetallic Behavior of Dual-Gated ABA-Stacked Trilayer Graphene
Creators: name: Henriksen, E. A.
name: Nandi, D.
name: Eisenstein, J. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electronic structure of multilayer graphenes depends strongly on the number of layers as well as the stacking order. Here we explore the electronic transport of purely ABA-stacked trilayer graphenes in a dual-gated field-effect device configuration. We find that both the zero-magnetic-field transport and the quantum Hall effect at high magnetic fields are distinctly different from the monolayer and bilayer graphenes, and that they show electron-hole asymmetries that are strongly suggestive of a semimetallic band overlap. When the ABA trilayers are subjected to an electric field perpendicular to the sheet, Landau level splittings due to a lifting of the valley degeneracy are clearly observed.
description: 5 figures