cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Greenhouse Gas Emissions from Canadian Agriculture: Estimates and Measurements
Creators: name: Fouli, Ymène
name: Hurlbert, Margot
name: Kröbel, Roland
Publisher: name: The School of Public Policy Publications
Year: 2021

description: Greenhouse gases (GHGs) cause the warming of the planet’s surface. Although this warming is vital for life on Earth, accelerated surface temperature rises due to increased GHGs in the atmosphere result in increasing atmospheric energy and rates of evaporation, causing unpredictable weather patterns and more intense weather events. The main GHGs are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). Of the 729 Megatonnes (Mt) of CO2 equivalent (CO2 eq) emitted by GHGs in Canada in 2018, 59 Mt were emitted by the agricultural sector in the form of CO2, N2O and CH4. The largest GHG emissions come from CH4 through enteric fermentation of beef and dairy cattle. Most N2O emissions come from agricultural soils through direct and indirect releases into the atmosphere. Carbon dioxide was also emitted after lime and urea applications as well as with the use of fossil fuel combustion machinery. Field techniques and empirical and process models have been developed to estimate and validate GHG emissions for different farm scenarios. These models aim to simulate every component of a farming system, whether a large beef cattle operation or a small animal and crop farm. Consequently, the models are constantly being assessed and revised as more data are available and methodologies are improved. As we gain better understanding of agricultural GHG emission estimates for different farm scenarios, the next step is to target emission sources and find ways to decrease emissions while maintaining or improving the financial sustainability of the farm and production system.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Enclosing the Sliding Surfaces of a Controlled Swing
Creators: name: Jaulin, Luc
name: Desrochers, Benoît
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: G.1.0; G.1.7

description: When implementing a non-continuous controller for a cyber-physical system, it may happen that the evolution of the closed-loop system is not anymore piecewise differentiable along the trajectory, mainly due to conditional statements inside the controller. This may lead to some unwanted chattering effects than may damage the system. This behavior is difficult to observe even in simulation. In this paper, we propose an interval approach to characterize the sliding surface which corresponds to the set of all states such that the state trajectory may jump indefinitely between two distinct behaviors. We show that the recent notion of thick sets will allows us to compute efficiently an outer approximation of the sliding surface of a given class of hybrid system taking into account all set-membership uncertainties. An application to the verification of the controller of a child swing is considered to illustrate the principle of the approach.
description: In Proceedings SNR 2020, arXiv:2101.05256
Elicitation - questions
Creators: name: Piño Bonangué, José
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with José Piño Bonangué. Topics covered include questions and word order with relative clauses.
A novel primary porcine retinal pigment epithelium cell model with preserved properties
Creators: name: Zhou, Dinna
name: Petersen, Anne
name: Adelöf, Julia
name: Hernebring, Malin
name: Zetterberg, Madeleine
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: To establish an ethical, reliable and expandable retinal pigment epithelial (RPE) cell model with maintained RPE properties compatible with multifarious assays. RPE cells from abattoir-obtained porcine eyes were cultured under various conditions. Morphology, RPE cell-specific protein markers (RPE-65, CRALBP) and the tight junction marker ZO-1 were analysed by phase-contrast microscopy, immunocytochemistry and western blot, and transepithelial electrical resistance (TEER) was determined to assess barrier function. The porcine RPE cells (pRPE) were best established using TrypLE Express, 10% fetal bovine serum (FBS) supplemented high-glucose media and subculturing at semi-confluency. The pRPE cells maintained epithelioid morphology with ZO-1 positive tight junctions at the cell-to-cell borders, ability to establish proper barrier function (TEERmax: 346/375 Ω⋅cm2 at passage I/passage VI) and expressed CRALBP and RPE-65 for several passages. The RPE characteristics decreased and disappeared with transdifferentiation. This work describes, for the first time, a pRPE cell model that exhibits preserved RPE properties for several passages on cell culture plastic plates. Though RPE characteristics were maintained for at least 6 passages, the reduced CRALBP and RPE-65 with passaging emphasize that lower passage cells are advantageous to utilise, and that morphology, barrier function and ZO-1 localisation cannot be solely employed as a quality measure of RPE identity. Pigs are phylogenetically similar to humans, including similar physiology, anatomy and immune system. Therefore, porcine RPE cells constitute a relevant model system for studying human eye diseases, such as AMD.
Time Series Forecasting in Anxiety Disorders of Outpatient Visits using Data Mining
Creators: name: Vatinee Sukmak
name: Jaree Thongkam
name: Jintana Leejongpermpoon
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: Radial basis function,Multi-layer perceptron networks,Anxiety disorders

description: 2, 20, KKU Research Journal
Fixed Point Structure of Gradient Flow Exact Renormalization Group for Scalar Field Theories
Creators: name: Abe, Yoshihiko
name: Hamada, Yu
name: Haruna, Junichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Gradient Flow Exact Renormalization Group (GFERG) is a framework to define the Wilson action via a gradient flow equation. We study the fixed point structure of the GFERG equation associated with a general gradient flow equation for scalar field theories and show that it is the same as that of the conventional Wilson-Polchinski (WP) equation in general. Furthermore, we discuss that the GFERG equation has a similar RG flow structure around a fixed point to the WP equation. We illustrate these results with the $O(N)$ non-linear sigma model in $4-ε$ dimensions and the Wilson-Fisher fixed point.
description: 23 pages, 1 figure
The role of hydrogen in Canada’s transition to net-zero emissions
Creators: name: Shaffer, Blake
Publisher: name: The School of Public Policy Publications
Year: 2021

description: This paper explores the role of hydrogen in helping Canada meet its net-zero emissions goals. On the supply side, we caution against the blanket categorization of production methods by “colours”, and instead encourage a focus on the metrics that matter: cost and lifecycle emissions per kilogram. Hydrogen derived from methane, with sequestered carbon dioxide (i.e. “blue” hydrogen) will likely be the method of choice for some time in western Canada, while hydrogen via electrolysis (i.e. “green”) will likely take off in Québec, spreading to other provinces as clean renewable power costs fall. High levels of sequestration (i.e. 90%+) and upstream methane leakage prevention will be essential for hydrogen to meaningfully contribute to Canada’s net-zero goals. On the demand side, we find while hydrogen can do many things, its highest value will be in areas where alternatives for decarbonization are costly or scarce, such as steel and chemicals production, as well as potentially rail and heavy freight. We take a deeper dive into the potential for hydrogen in the electricity system, both by absorbing excess generation via electrolysis, and providing much needed reliability as a peaking product, enabling higher shares of variable renewable energy. We find that by 2030, hydrogen has the potential to compete with natural gas as a dominant firm power source.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Aedes aegypti Larval Habitats and Dengue Vector Indices in a Village of Ubonratchathani Province in the North-East of Thailand
Creators: name: Jaruwan Wongbutdee
name: Wacharapong Saengnill
Publisher: name: Research and Technology Transfer Affairs Division
Year: 2015
Subjects: Dengue vector indices,Aedes aegypti larvae,Breeding habitats

description: 2, 20, KKU Research Journal
The Bound of Entanglement of Superpositions with More Than Two Components
Creators: name: Xiang, Yang
name: Xiong, Shi-Jie
name: Hong, Fang-Yu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A bipartite quantum state (for two systems in any dimensions) can be decomposed as a superposition of many components. For a superposition of more than two components we prove that there is a bound of the entanglement of the superposition state which can be expressed according to entanglements of its component states. Especially, if the component states are mutually bi-orthogonal, the entanglement of the superposition state can be exactly given in terms of the entanglements of the states being superposed.
description: 5 pages;v2: version to be pulished in The European Physical Journal D
The key role of No-Carbon State-Owned Enterprises in Global Climate Action: Leveraging the G20 forum to accelerate the energy transition
Creators: name: Beltran-Rodriguez, Leonardo
name: Lozano-Maya, Juan Roberto
Publisher: name: The School of Public Policy Publications
Year: 2021

description: The energy sector is the single largest source of carbon emissions, for which actions oriented to reduce its carbon intensity are critical to effectively tackle climate change. A great and yet largely untapped potential to reduce its emissions lies in oil and gas companies. Cognizant of this potential, in recent years several International Oil Companies (IOCs), publicly traded organizations with large capital access and wide geographical reach, have looked forward to effectively reduce their carbon intensity by shifting their operations to non-core low-carbon energy development. The IOCs have embraced this transition to leverage the business opportunities presented by political and social environments progressively more accountable of the energy sector’s contributions to climate change. Owing to the potential of this transition to produce positive climate outcomes, it has sparked great interest in an increasing number of stakeholders; nevertheless, National Oil Companies (NOCs) and other state-owned enterprises (SOEs) in the energy sector are still notoriously absent. SOEs not only dominate the global oil and gas industry over IOCs, but they typically enjoy more favorable industry conditions, as they benefit from improved capital access and governmental support, as their overall value proposition, business strategies and budgets are interlinked with, or heavily influenced by governmental policies. Under a mutable business environment which favors the development of energy resources with low or zero carbon content, it is reasonable to anticipate that national governments will become more determined to join the energy transition through their SOEs based on two main reasons: meeting their national targets under global emissions reductions commitments while sustaining shareholder value. Given the complex efforts and resources in carrying out the energy transition at a pace and scale that effectively helps mitigate climate change, such initiative will set us in a deep decarbonization pathway if fully embraced by the world’s largest economies and their SOEs. The implementation of this initiative would allow NOCs and SOEs in these countries to transform themselves into No-Carbon State-Owned Enterprises that would strive for socially accountable sustainable growth, higher economic value and effective contributions in the global fight against climate change. This paper analyzes these issues and advances a proposal for the Group of the world’s 20 major economies (G20).
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Influences of sinusoidal density modulation on stimulated Raman scattering in inhomogeneous plasmas
Creators: name: Chen, Y.
name: Zheng, C. Y.
name: Liu, Z. J.
name: Cao, L. H.
name: Feng, Q. S.
name: Chen, Y. G.
name: Huang, Z. M.
name: Xiao, C. Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The influence of sinusoidal density modulation on the stimulated Raman scattering (SRS) reflectivity in inhomogeneous plasmas is studied by three-wave coupling equations, fully kinetic Vlasov simulations and particle in cell (PIC) simulations. Through the numerical solution of three-wave coupling equations, we find that the sinusoidal density modulation is capable of inducing absolute SRS even though the Rosenbluth gain is smaller than π, and we give a region of modulational wavelength and amplitude that the absolute SRS can be induced, which agrees with early studies. The average reflectivity obtained by Vlasov simulations has the same trend with the growth rate of absolute SRS obtained by three-wave equations. Instead of causing absolute instability, modulational wavelength shorter than a basic gain length is able to suppress the inflation of SRS through harmonic waves. And, the PIC simulations qualitatively agree with our Vlasov simulations. Our results offer an alternative explanation of high reflectivity at underdense plasma in experiments, which is due to long-wavelength modulation, and a potential method to suppress SRS by using the short-wavelength modulation.
THE LABOUR FORCE PARTICIPATION RATE OF WOMEN WITH YOUNG CHILDREN
Creators: name: Kneebone, Ronald
Publisher: name: The School of Public Policy Publications
Year: 2021

description: This month’s Social Policy Trends revisits an issue we first examined in November 2017, namely, possible reasons for provincial differences in the labour force participation rates of women with young children and an employed spouse. In that earlier discussion we highlighted data showing that one possible explanation for that participation rate being higher in Quebec than other provinces was the availability of relatively inexpensive childcare. We showed that after 1997, the labour force participation rate of women with young children and an employed spouse increased in Quebec significantly more than in other provinces. The timing of the increase coinciding with the introduction of less expensive childcare was seen as strongly suggestive of the benefits of such a program. Research has confirmed that connection.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
An Urban Nation: The Shifting Fortunes of Canadian Cities
Creators: name: McQuillan, Kevin
name: Laszlo, Michael
Publisher: name: The School of Public Policy Publications
Year: 2021

description: The growth of the modern economy has always been associated with city living. The earliest stages of the Industrial Revolution saw the movement of rural dwellers to urban areas in search of work in factories, warehouses, and transportation. The process continues today, and in both advanced and developing economies, the proportion of the population living in cities continues to grow. Canada has been very much an example of this process. In 2020, more than 7 in 10 Canadians lived in communities with at least 100 000 residents.
description: The School of Public Policy Publications, Vol. 14 No. 1 (2021)
Structuring co- and counter-flowing currents of polariton condensates in concentric ring-shaped potentials
Creators: name: Barkhausen, Franziska
name: Pukrop, Matthias
name: Schumacher, Stefan
name: Ma, Xuekai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the current flow of microcavity polariton condensates loaded into concentric ring-shaped potentials. The tunneling of the condensates between different potential rings results in different phase-locked states, depending on the separation of the potential rings. As a consequence, the condensate currents in different rings can flow either in the same or opposite direction depending on the specific configuration of the ring-shaped potentials. In two concentric standard ring-shaped potentials, the condensates always circulate in the same direction (co-flowing current) and the vortices formed in the two rings share the same topological charge because of the azimuthally uniform distribution of their phase difference. In this case, increasing the number of the potential rings enables the excitation of Bessel-like solutions. If the two ring-shaped potentials are engineered into an eye shape with the inner ring being standard ring-shaped and the outer ring being elliptically ring-shaped, the phase differences of the condensates in the two rings along the major and minor axes of the ellipse can be opposite, which gives rise to a counter-flowing condensate currents.
A Spectroscopic Study of the Near-IR [SIII] Lines in a Sample of HII Galaxies: chemical abundances
Creators: name: Kehrig, C.
name: Vilchez, J. M.
name: Telles, E.
name: Cuisinier, F.
name: Perez-Montero, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A detailed spectroscopic study, from lambda 3700 A to 1 um, was performed for a sample of 34 HII galaxies in order to derive fundamental parameters for their HII regions and ionizing sources, as well as gaseous metal abundances. All the spectra included the nebular [SIII]9069,9532 A lines, given their importance in the derivation of the S/H abundance and relevant ionization diagnostics. A systematic method was followed to correct the near-IR [SIII] line fluxes for the effects of the atmospheric transmission.A comparative analysis of the predictions of the empirical abundance indicators R23 and S23 has been performed. The relative hardness of their ionizing sources was studied using the eta parameter, and exploring the role played by metallicity. For 22 galaxies of the sample a direct value of te[SIII] was derived, along with their ionic and total S/H abundances. Their ionic and total O/H abundances were derived using direct determinations of te[OIII].For the rest of the objects, the total S/H abundance was derived using S23. The abundance range covered by our sample goes from 1/20 solar up to solar metallicity. The mean S/O ratio derived is log (S/O)=-1.68+/-0.20 dex, 1 sigma below the solar S/O value. The S/O abundance ratio shows no significant trend with O/H over the range of abundance covered in this work, in agreement with previous findings.There is a trend for HII galaxies with lower gaseous metallicity to present harder ionizing spectra. We compared the distribution of the ionic ratios O+/O++ vs. S+/S++ derived for our sample with the predictions of a grid of photoionization models performed for different stellar effective temperatures. This analysis indicates that a large fraction of galaxies in our sample seem to be ionized by extremely hard spectra.
description: 12 pages, 8 figures, accepted for publication in the A&A, minor gramatical corrections included
XCDCC: Core Excitation in the Breakup of Exotic Nuclei
Creators: name: Summers, N. C.
name: Nunes, F. M.
name: Thompson, I. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The eXtended Continuum Discretized Coupled Channel (XCDCC) method is developed to treat reactions where core degrees of freedom play a role. The projectile is treated as a multi-configuration coupled channels system generated from a valence particle coupled to a deformed core which is allowed to excite. The coupled channels initial state breaks up into a coupled channels continuum which is discretized into bins, similarly to the original CDCC method. Core collective degrees of freedom are also included in the interaction of the core and the target, so that dynamical effects can occur during the reaction. We present results for the breakup of $^{17}$C=$^{16}$C+n and $^{11}$Be=$^{10}$Be+n on $^{9}$Be. Results show that the total cross section increases with core deformation. More importantly, the relative percentage of the various components of the initial state are modified during the reaction process through dynamical effects. This implies that comparing spectroscopic factors from structure calculations with experimental cross sections requires more detailed reaction models that go beyond the single particle model.
description: 14 pages, revtex, submitted to Phys Rev C
Identification and Analysis of Primary Cilia in the Corneal Endothelial Cells of Patients with Bullous Keratopathy
Creators: name: Deguchi, Hideto
name: Tanioka, Hidetoshi
name: Watanabe, Mako
name: Horiuchi, Noriko
name: Fukuoka, Hideki
name: Hieda, Osamu
name: Inatomi, Tsutomu
name: Kinoshita, Shigeru
name: Sotozono, Chie
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: To identify primary cilia in human corneal endothelial cells (CECs) obtained from patients with bullous keratopathy (BK). This study involved CEC specimens obtained from 10 eyes of 10 consecutive patients (three males and seven females; mean age: 74.5 years, range: 68–90 years) with BK who underwent Descemet’s stripping automated endothelial keratoplasty at Baptist Eye Institute, Kyoto, Japan between August 2019 and September 2020. Three corneal buttons obtained from 3 patients who underwent penetrating keratoplasty for keratoconus were used as 'non-BK' controls. All specimens were evaluated with immunofluorescence staining using an antibody against acetylated α-tubulin. Ciliary expression was observed in six of the 10 CEC specimens; i.e. in two specimens obtained from BK patients after glaucoma surgery (trabeculectomy), in two specimens obtained from patients with Fuchs endothelial corneal dystrophy, and in two specimens obtained from a patient with BK after laser iridotomy for primary angle closure. There was acetylated α-tubulin staining but no hair-like structures in two specimens, and ciliary expression was unknown in two specimens due to the absence of cells. The length of the primary cilia varied between all specimens. In contrast, no primary cilia were observed in the corneal buttons obtained from the three keratoconus patients. The findings in this study clearly demonstrate the expression of primary cilia in the CECs of patients afflicted with BK.
Evaluation of memory effects at phase transitions and during relaxation processes
Creators: name: Meyer, Hugues
name: Glatzel, Fabian
name: Wöhler, Wilkin
name: SChilling, Tanja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We propose to describe the dynamics of phase transitions in terms of a non-stationary Generalized Langevin Equation for the order parameter. By construction, this equation is non-local in time, i.e.~it involves memory effects whose intensity is governed by a memory kernel. In general, it is a hard task to determine the physical origin and the extent of the memory effects based on the underlying microscopic equations of motion. Therefore we propose to relate the extent of the memory kernel to quantities that are experimentally observed such as the induction time and the duration of the phase transformation process. Using a simple kinematic model, we show that the extent of the memory kernel is positively correlated with the duration of the transition and of the same order of magnitude, while the distribution of induction times does not have an effect. This observation is tested at the example of several model systems, for which we have run Molecular Dynamics simulations: a modified Potts-model, a dipole gas, an anharmonic spring in a bath and a nucleation problem. All these cases are shown to be consistent with the simple theoretical model.
Dirac gaugino from grand gauge-Higgs unification
Creators: name: Nakano, Hiroaki
name: Sato, Masamichi
name: Seto, Osamu
name: Yamashita, Toshifumi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that models of the Dirac gaugino can naturally be embedded into a kind of the grand unified theory (GUT), the grand gauge-Higgs unification (gGHU) model, with the gauge group SU(5)\times SU(5)/Z_2 on an S^1/Z_2 orbifold. The supersymmetric gGHU is known to posess a light chiral adjoint supermultiplet after the GUT breaking, thank to the exchange symmetry of two SU(5) groups. Identifying the `predicted' adjoint fermion with the Dirac partner of the gaugino, we argue that the supersoft term, responsible for the Dirac gaugino mass, can be obtained from the supersymmetric Chern-Simons (CS) like term in the gGHU setup. Although the latter term does not respect the exchange symmetry, we propose a novel way to introduce its breaking effect within a consistent orbifold construction. We also give a concrete setup of fermion field contents (bulk and boundary-localized fermions) that induce the requisite CS-like term, and calculate its coefficient from the bulk profile of chiral fermion zero modes. Our gGHU setup may be regarded as an extra-dimensional realization of the Goldstone gaugino scenario that was proposed before as a solution to the problem of the adjoint scalar masses.
description: 28 pages; revised version with Appendix A modified; tables added
The coping process of a parent who has an adult child with schizophrenia
Creators: name: Lana, Rose Teresa Dalla
Publisher: name: University of British Columbia
Year: 2009

description: This exploratory study investigated the coping process of parents who have adult sons or daughters with schizophrenia. The inquiry was framed by individual stress and coping theory with attention to family context. It investigated predictive relationships among illness characteristics, demographics, individual and family level resources, situational appraisals, and coping strategies. The sample was comprised of 109 mothers and 32 fathers recruited through notices in newspapers and the Schizophrenia newsletter, and through personal appeals to support groups. Questionnaires, along with stamped, self-addressed, return envelopes, were distributed personally or by mail. Either the mother or the father of a person with schizophrenia was considered eligible for participation. Measures used for assessment were those with established psychometric properties. A correlations matrix was examined to identify those variables that were significantly associated with the dependent variables of interest. The relationships among these relevant variables were further analyzed using a standard multiple regression procedure. The results showed support for the chosen theoretical perspective. A parents' coping process was shown to be multideterminant and interactive. Both illness characteristics and demographics were predictive of primary appraisals (perceptions of how the illness affected the parent's life ) and of coping strategies; individual and family resources predicted primary appraisals, secondary appraisals of controllability , and ways of coping; predictive relationships also existed among primary appraisals, secondary appraisals, and ways of coping. The importance of a direct influence of family members on the parental coping process was indicated .
Functional classification of CATH superfamilies: a domain-based approach for protein function annotation
Creators: name: Sayoni Das
name: Lee, David
name: Sillitoe, Ian
name: Dawson, Natalie
name: Lees, Jonathan
name: Orengo, Christine
Publisher: name: F1000Research
Year: 2015

description: Automated protein function prediction methods are essential to bridge the widening function annotation gap as < 1.0% of all known proteins are experimentally characterised (UniProtKB, January 2015). We present the FunFHMMer webserver which provides Gene Ontology annotations and valuable information for the prediction of functional sites for query protein sequences based on the functional classification of the domain-based CATH-Gene3D resource.

CATH-Gene3D provides a comprehensive classification of structure and sequence domains into 2735 structure-based superfamilies, which have been further classified into functional families or FunFams using a new method, FunFHMMer. The FunFams provide more functionally coherent groupings of protein sequences than other domain-based protein classifications and the conserved positions in the FunFams have also been found to be enriched in known functional residues. This functional classification helps to improve the functional annotation of uncharacterised protein domain sequences assigned to an annotated FunFam within the superfamily and also helps in understanding the mechanisms of functional divergence in a superfamily during evolution.

The functional annotations provided by the FunFams have been found to be more precise than other domain-based resources like Pfam and CDD. Moreover, recent validation by an independent international competition, CAFA, ranks FunFHMMer as one of the top function prediction methods in predicting Gene Ontology annotations for both the Biological Process and Molecular Function Ontology. All FunFam annotation data are available through the CATH webpages (http://www.cathdb.info) and the FunFHMMer webserver is available at http://www.cathdb.info/search/by_funfhmmer.
Interaction potential between heavy $Q \bar{Q}$ in color octet configuration in QGP
Creators: name: Bala, Dibyendu
name: Datta, Saumen
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the interaction between a heavy quark-antiquark pair in color octet configuration in gluon plasma. We calculate nonperturbatively an effective thermal potential for such a pair through the study of the correlation function of a hybrid state with $Q \bar{Q}$ octet and an adjoint gluon source in the static limit. We discuss the extraction of an octet potential, and present results for the effective thermal potential between octet $Q \bar{Q}$ pair in gluon plasma for moderately high temperatures $\lesssim 2 T_c$. The implications of our result are discussed.
description: 17 pages, 13 figures. Figures 8, 9 and two figures in appendix modified. Some minor notational changes. No change of conclusion
Acceleration and Deceleration in Curvature Induced Phantom Model of the Late and Future Universe, Cosmic Collapse as Well as its Quantum Escape
Creators: name: Srivastava, S. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Here, cosmology of the late and future universe is obtained from $f(R)$-gravity with non-linear curvature terms $R^2$ and $R^3$ ($R$ being the Ricci scalar curvature). It is different from $f(R)$-dark enrgy models, where non-linear curvature terms are taken as gravitational alternative of dark energy. In the present model, neither linear nor no-linear curvature terms are taken as dark energy. Rather, dark energy terms are induced by curvature terms in the Friedmann equation derived from $f(R)$-gravitational equations. It has advantage over $f(R)$- dark energy models in the sense that the present model satisfies WMAP results and expands as $\sim t^{2/3}$ during matter-dominance. So, it does not have problems due to which $f(R)$-dark energy models are criticized. Curvature-induced dark energy, obtained here, mimics phantom. Different phases of this model, including acceleration and deceleration during phantom phase, are investigated here.It is found that expansion of the universe will stop at the age $(3.87 t_0 + 694.4 {\rm kyr})$ ($t_0$ being the present age of the universe) and after this epoch, it will contract and collapse by the time $(336.87 t_0 + 694.4 {\rm kyr})$. Further,it is shown that universe will escape predicted collapse (obtained using classical mechanics) on making quantum gravity corrections relevant near collapse time due to extremely high energy density and large curvature analogous to the state of very early universe. Interestingly, cosmological constant is also induced here, which is very small in classical domain, but very high in quantum domain.
description: 33 pages
Two-dimensional localized states in an active phase-field-crystal model
Creators: name: Ophaus, Lukas
name: Knobloch, Edgar
name: Gurevich, Svetlana V.
name: Thiele, Uwe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The active phase-field-crystal (active PFC) model provides a simple microscopic mean field description of crystallization in active systems. It combines the PFC model (or conserved Swift-Hohenberg equation) of colloidal crystallization and aspects of the Toner-Tu theory for self-propelled particles. We employ the active PFC model to study the occurrence of localized and periodic active crystals in two spatial dimensions. Due to the activity, crystalline states can undergo a drift instability and start to travel while keeping their spatial structure. Based on linear stability analyses, time simulations and numerical continuation of the fully nonlinear states, we present a detailed analysis of the bifurcation structure of resting and traveling states. We explore, for instance, how the slanted homoclinic snaking of steady localized states found for the passive PFC model is modified by activity. The analysis is carried out for the model in two spatial dimensions. Morphological phase diagrams showing the regions of existence of various solution types are presented merging the results from all the analysis tools employed. We also study how activity influences the crystal structure with transitions from hexagons to rhombic and stripe patterns. This in-depth analysis of a simple PFC model for active crystals and swarm formation provides a clear general understanding of the observed multistability and associated hysteresis effects, and identifies thresholds for qualitative changes in behavior.
Fermionic and bosonic quantum field theories from quantum cellular automata in three spatial dimensions
Creators: name: Mlodinow, Leonard
name: Brun, Todd A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum walks on lattices can give rise to relativistic wave equations in the long-wavelength limit, but going beyond the single-particle case has proven challenging, especially in more than one spatial dimension. We construct quantum cellular automata for distinguishable particles based on two different quantum walks, and show that by restricting to the antisymmetric and symmetric subspaces, respectively, a multiparticle theory for free fermions and bosons in three spatial dimensions can be produced. This construction evades a no-go theorem that prohibits the usual fermionization constructions in more than one spatial dimension. In the long-wavelength limit, these recover Dirac field theory and Maxwell field theory, i.e., free QED.
description: 5 pages, two column format
Lightest Higgs Boson and Relic Neutralino in the MSSM with CP Violation
Creators: name: Lee, Jae Sik
name: Scopel, Stefano
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the lower bound to the lightest Higgs boson H_1 in the minimal supersymmetric extension of the standard model (MSSM) with explicit CP violation, and the phenomenology of the lightest relic neutralino in the same scenario. In particular, adopting the CPX benchmark scenario, we find that the combination of experimental constraints coming from LEP, Thallium Electric Dipole Moment (EDM) measurements, quorkonium decays, and B_s -> mu mu decay favours a region of the parameter space where the mass of H_1 is in the range 7 GeV < M_{H_1} < 10 GeV, while 3 < tan(beta) < 5. Assuming a departure from the usual GUT relation among gaugino masses (|M_1| << |M_2|), we find that through resonant annihilation to H_1 a neutralino as light as 2.9 GeV can be a viable dark matter candidate in this scenario. We call this the CPX light neutralino scenario, and discuss its phenomenology showing that indirect Dark Matter searches are compatible with the present experimental constraints, as long as m_χ< M_{H_1}/2. On the other hand, part of the range m_χ> M_{H_1}/2 which is allowed by cosmology is excluded by antiproton fluxes.
description: 16 pages, 6 figures
SN 2013ai: a link between hydrogen-rich and hydrogen-poor core-collapse supernovae
Creators: name: Davis, S.
name: Pessi, P. J.
name: Fraser, M.
name: Ertini, K.
name: Martinez, L.
name: Hoeflich, P.
name: Hsiao, E. Y.
name: Folatelli, G.
name: Ashall, C.
name: Phillips, M. M.
name: Anderson, J. P.
name: Bersten, M.
name: Englert, B.
name: Fisher, A.
name: Benetti, S.
name: Bunzel, A.
name: Burns, C.
name: Chen, T. W.
name: Contreras, C.
name: Elias-Rosa, N.
name: Falco, E.
name: Galbany, L.
name: Kirshner, R. P.
name: Kumar, S.
name: Lu, J.
name: Lyman, J. D.
name: Marion, G. H.
name: Mattila, S.
name: Maund, J.
name: Morrell, N.
name: Serón, J.
name: Stritzinger, M.
name: Shahbandeh, M.
name: Sullivan, M.
name: Suntzeff, N. B.
name: Young, D. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a study of optical and near-infrared (NIR) spectra along with the light curves of SN 2013ai. These data range from discovery until 380 days after explosion. SN 2013ai is a fast declining type II supernova (SN II) with an unusually long rise time; $18.9\pm2.7$d in $V$ band and a bright $V$ band peak absolute magnitude of $-18.7\pm0.06$ mag. The spectra are dominated by hydrogen features in the optical and NIR. The spectral features of SN 2013ai are unique in their expansion velocities, which when compared to large samples of SNe II are more than 1,000 kms faster at 50 days past explosion. In addition, the long rise time of the light curve more closely resembles SNe IIb rather than SNe II. If SN 2013ai is coeval with a nearby compact cluster we infer a progenitor ZAMS mass of $\sim$17 M$_\odot$. After performing light curve modeling we find that SN 2013ai could be the result of the explosion of a star with little hydrogen mass, a large amount of synthesized $^{56}$Ni, 0.3-0.4 M$_\odot$, and an explosion energy of $2.5-3.0\times10^{51}$ ergs. The density structure and expansion velocities of SN 2013ai are similar to that of the prototypical SN IIb, SN 1993J. However, SN 2013ai shows no strong helium features in the optical, likely due to the presence of a dense core that prevents the majority of $γ$-rays from escaping to excite helium. Our analysis suggests that SN 2013ai could be a link between SNe II and stripped envelope SNe.
description: 24 pages, 17 figures, accepted to ApJ
Into the fold: advances in understanding aPKC membrane dynamics.
Creators: name: Cobbaut, Mathias
name: Parker, Peter J
name: McDonald, Neil Q
Publisher: name: The Francis Crick Institute
Year: 2024
Subjects: classificationCode: Biochemistry & Proteomics
subject: Biochemistry & Proteomics

description: Atypical protein kinase Cs (aPKCs) are part of the PKC family of protein kinases and are atypical because they don't respond to the canonical PKC activators diacylglycerol (DAG) and Ca2+. They are central to the organization of polarized cells and are deregulated in several cancers. aPKC recruitment to the plasma membrane compartment is crucial to their encounter with substrates associated with polarizing functions. However, in contrast with other PKCs, the mechanism by which atypical PKCs are recruited there has remained elusive until recently. Here, we bring aPKC into the fold, summarizing recent reports on the direct recruitment of aPKC to membranes, providing insight into seemingly discrepant findings and integrating them with existing literature.
Voltage Estimation in Low-Voltage Distribution Grids with Distributed Energy Resources
Creators: name: Marković, Marija
name: Sajadi, Amirhossein
name: Florita, Anthony
name: Cruickshank, Robert
name: Hodge, Bri-Mathias
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The present distribution grids generally have limited sensing capabilities and are therefore characterized by low observability. Improved observability is a prerequisite for increasing the hosting capacity of distributed energy resources such as solar photovoltaics (PV) in distribution grids. In this context, this paper presents learning-aided low-voltage estimation using untapped but readily available and widely distributed sensors from cable television (CATV) networks. The CATV sensors offer timely local voltage magnitude sensing with 5-minute resolution and can provide an order of magnitude more data on the state of a distribution system than currently deployed utility sensors. The proposed solution incorporates voltage readings from neighboring CATV sensors, taking into account spatio-temporal aspects of the observations, and estimates single-phase voltage magnitudes at all non-monitored buses using random forest. The effectiveness of the proposed approach was demonstrated using a 1572-bus feeder from the SMART-DS data set for two case studies - passive distribution feeder (without PV) and active distribution feeder (with PV). The analysis was conducted on simulated data, and the results show voltage estimates with a high degree of accuracy, even at extremely low percentages of observable nodes.
description: Submitted to IEEE Transactions on Sustainable Energy
Moving Image Preservation 101
Creators: name: Hagan, Siobhan
Publisher: name: Maryland Shared Open Access Repository
Year: 2015
Subjects: Preservation
Film
Video
Preservation Week
Born-Digital

description: This PowerPoint presentation covers the basic composition and history of film and video technology, particularly as it relates to formats found within personal and family collections. Tips and tricks for preserving your personal moving image materials are addressed so that future generations can continue to enjoy family movies and videos. This presentation was given as a free webinar during Preservation Week 2015 and a recording is available.
description: Association for Library Collections and Technical Services, American Library Association, HF Group, George Blood Audio and Video
Finite descent obstructions and rational points on curves
Creators: name: Stoll, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G10, 11G30, 11G35, 14G05, 14G25, 14H30 (Primary), 11R34, 14H25, 14J20, 14K15 (Secondary)

description: Let k be a number field and X a smooth projective k-variety. In this paper, we study the information obtainable from descent via torsors under finite k-group schemes on the location of the k-rational points on X within the adelic points. Our main result is that if a curve C/k maps nontrivially into an abelian variety A/k such that A(k) is finite and Sha(k,A) has no nontrivial divisible elements, then the information coming from finite abelian descent cuts out precisely the rational points of C. We conjecture that this is the case for all curves of genus at least 2. We relate finite descent obstructions to the Brauer-Manin obstruction; in particular, we prove that on curves, the Brauer set equals the set cut out by finite abelian descent. Our conjecture therefore implies that the Brauer-Manin obstruction against rational points in the only one on curves.
description: 43 pages. Changes from previous version: some improvements in section 5, simplification in section 7, cut most of section 9 (which will be expanded and published separately), plus minor changes throughout
Slow relaxation in the two dimensional electron plasma under the strong magnetic field
Creators: name: Kawahara, Ryo
name: Nakanishi, Hiizu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study slow relaxation processes in the point vortex model for the two-dimensional pure electron plasma under the strong magnetic field. By numerical simulations, it is shown that, from an initial state, the system undergoes the fast relaxation to a quasi-stationary state, and then goes through the slow relaxation to reach a final state. From analysis of simulation data, we find (i) the time scale of the slow relaxation increases linearly to the number of electrons if it is measured by the unit of the bulk rotation time, (ii) during the slow relaxation process, each electron undergoes an superdiffusive motion, and (iii) the superdiffusive motion can be regarded as the Levy flight, whose step size distribution is of the power law. The time scale that each electron diffuses over the system size turns out to be much shorter than that of the slow relaxation, which suggests that the correlation among the superdiffusive trajectories is important in the slow relaxation process.
description: 11pages, 19 figures. Submitted to J. Phys. Soc. Jpn
A Perspective-Based Understanding of Project Success
Creators: name: McLeod, Laurie
name: Doolin, Bill
name: MacDonell, Stephen G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Answering the call for alternative approaches to researching project management, we explore the evaluation of project success from a subjectivist perspective. An in-depth, longitudinal case study of information systems development in a large manufacturing company was used to investigate how various project stakeholders subjectively perceived the project outcome and what evaluation criteria they drew on in doing so. A conceptual framework is developed for understanding and analyzing evaluations of project success, both formal and informal. The framework highlights how different stakeholder perspectives influence the perceived outcome(s) of a project, and how project evaluations may differ between stakeholders and across time.
description: Journal, 18 pages, 2 figures, 3 tables