cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The effect of cyclic fatigue on the hardness of new NiTi endodontic files : a nanoindentation study
Creators: name: Hieawy, Ahmed
Publisher: name: University of British Columbia
Year: 2016

description: Objective: The purpose of this study was to compare the flexibility and cyclic fatigue of ProTaper Universal (PTU; Dentsply Tulsa Dental Specialties, Tulsa, OK) and ProTaper Gold (PTG; Dentsply Tulsa Dental Specialties, Tulsa, OK) in relation to their phase transformation behavior, as well as to determine the effect of cyclic fatigue on the nanohardness with a nanoindentation method. Hypotheses: PTG and PTU have similar flexibility and fatigue resistance. Cyclic fatigue has no effect on the hardness of both PTG and PTU NiTi rotary endodontic instruments. Methodology: PTU and PTG instruments were subjected to rotational bending at a curvature of 40° and a radius of 6mm. The number of cycles to fracture (NCF) was recorded. According to the ISO 3630-1 specification, 45° bending tests was used to determine the flexibility. Unused and fractured instruments were studied by differential scanning calorimetry. The hardness and modulus of elasticity of new files, fractured instruments and instruments stressed to 50% of the NCF for sizes S1, F1 and F2 were measured with the use of a nanoindenter. Results: PTG had a cyclic fatigue resistance superior to PTU in all sizes (P <.001). The fractured files of both PTU and PTG showed the typical fracture pattern of fatigue failure. Bending load results for PTG were significantly lower than that for PTU (P <.05). The differential scanning calorimetry analyses showed that PTG instruments had a higher austenite finish temperature (50.1°C ± 1.7°C) than the PTU instruments (21.2°C ± 1.9°C) (P <.001). There were no significant differences in the austenite finish between unused files and instruments subjected to the fatigue process. There were statistically significant differences in nanohardness and elastic modulus between PTU and PTG groups (P < 0.05). Conclusions: Within the limitation of this study, PTG files were significantly more flexible and resistant to fatigue than PTU files. PTG exhibited different phase transformation behavior than PTU, which may be attributed to the special heat treatment history of PTG instruments. The fatigue process had no significant effect on the hardness and elastic modulus of both NiTi instrument. PTG may be more suitable for preparing canals with sudden curvature.
Tribological performance of PVD film systems against plastic counterparts for adhesion-reducing application in injection molds
Creators: name: Tillmann, Wolfgang
name: Lopes Dias, Nelson Filipe
name: Stangier, Dominic
name: Gelinski, Nikolai
Publisher: name: TU Dortmund
Year: 2019
Subjects: subject: Physical vapor deposition
subject: CrN
subject: CrAlN
subject: CrAlSiN
subject: Al2O3
subject: Amorphous carbon
subject: Tribological properties
subject: Polystyrene
subject: 620
subject: 670
subject: PVD-Verfahren
subject: Chromnitrid
subject: Aluminiumoxide
subject: Kohlenstoff
subject: Amorpher Zustand
subject: Tribosystem
subject: Polyamide
subject: Polypropylen
subject: Polystyrol

description: The deposition of physical vapor deposition (PVD) hard films is a promising approach to enhance the tribological properties of injection molds in plastic processing. However, the adhesion is influenced by the pairing of PVD film and processed plastic. For this reason, the friction behavior of di erent PVD films against polyamide, polypropylene, and polystyrene was investigated in tribometer tests by correlating the relation between the roughness and the adhesion. It was shown that the dispersive and polar surface energy have an impact on the work of adhesion. In particular, Cr-based nitrides with a low polar component exhibit the lowest values ranging from 65.5 to 69.4 mN/m when paired with the polar polyamide. An increased roughness leads to a lower friction due to a reduction of the adhesive friction component, whereas a higher work of adhesion results in higher friction for polyamide and polypropylene. Within this context, most Cr-based nitrides exhibited coe cients of friction below 0.4. In contrast, polystyrene leads to a friction-reducing material transfer. Therefore, a customized deposition of the injection molds with an appropriated PVD film system should be carried out according to the processed plastic.
description: Coatings;Vol. 9, 9
Access to early care and education for children in immigrant families: Research-to-policy resources
Creators: name: Stephens, Samuel A.
Publisher: name: Columbia University
Year: 2017
Subjects: Child care
Early childhood education
Immigrant families
Children of immigrants--Services for
Child development

description: This Research-to-Policy Resource List focuses on resources in the Research Connections collection published in 2010 or later that focus on access to early care and education for children in immigrant families. The resources on this list are organized into the following categories: research reviews, research based on large-scale national datasets, and research based on smaller-scale, in-depth, and/or localized (state- or community-level) studies. These resources provide information on immigrant status as a factor in access to early care and education, on the benefits that early education experiences offer children in immigrant families, as well as on barriers to access and strategies to address those barriers.
Minimal Lepton Flavor Violation and Renormalization Group Evolution of Lepton Masses and Mixing
Creators: name: Grossman, Yuval
name: Ray, Shamayita
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the renormalization group equations (RGEs) of the neutrino parameters in models of Minimal Lepton Flavor Violation. In such models, the RGEs can be described in terms of flavor spurions, such that only the coefficients depend on the specific model. We explicitly demonstrate this method for the SM and MSSM for both Type-I and Type-III seesaw models. For that purpose, the RGEs of neutrino parameters in the MSSM Type-III seesaw have been computed. We have extended this method to get the evolution equations at second order. The implications for leptogenesis are also discussed.
description: 36 pages, 7 figures
Research Connections research and policy library
Creators: name: Child Care & Early Education Research Connections
Publisher: name: Columbia University
Year: 2019
Subjects: Child care--Research
Early childhood education--Research
Research--Methodology
Social sciences--Research--Methodology
Child care--Government policy
Early childhood education--Government policy

description: Child Care and Early Education Research Connections promoted high quality research in child care and early education and the use of that research in policy making. It was funded from 2004-2018 by a series of grants from the Office of Planning, Research and Evaluation, Administration for Children and Families, U.S. Department of Health and Human Services to the National Center for Children in Poverty (NCCP) at the Mailman School of Public Health, Columbia University, and the Inter-university Consortium for Political and Social Research (ICPSR) at the Institute for Social Research, the University of Michigan. Through its website, Research Connections offered research and data resources for researchers, policy makers, practitioners, and others. A large part of the work of Research Connections consisted of building a 30,000+ library of research and policy resources. Resources in the Research Connections research and policy library cover a broad spectrum of research and policies on child care and early education and related policies. The library brings together original research, syntheses, policy briefs, compilations of statistical information, instruments, and other research-related resources from the wide range of social science disciplines and professional fields that study early care and education. Resources in the collection examine the child care and early education experiences of children birth through age eight and -- when addressing school-age child care -- through age 13. To keep the collection up-to-date, Research Connections routinely searched several hundred journals and more than a thousand websites. Research Connections systematically searched for all new literature since 1995 through September 2018. This Excel spreadsheet includes the bibliographic information on each of the 30,000+ resources in the Research Connections research and policy library. On the Research and Policy Library tab you will find basic bibliographic information, including the title, author, publisher, journal, publication date, and funder. Also included in each record are an abstract, subject terms, related resources such as instruments, and where available, a URL for the full publication. You can search, sort, and filter this spreadsheet using the tools available in Excel. The Definitions and Notes tab offers information on the fields in the research and policy library.
title: Lebenschancen im Quartier
title: Bedürfnisse, Ressourcen und Strategien von Stadtteilbewohner_innen
titleType: AlternativeTitle
Creators: name: Schuster, Nina
name: Volkmann, Anne
Publisher: name: TU Dortmund
Year: 2019
Subjects: subject: Quartierseffekte
subject: Sozialräumliche Benachteiligung
subject: Lebenschancen
subject: Ressourcen
subject: Bedürfnisse
subject: Neighbourhood effects
subject: Socio-spatial disadvantages
subject: Life chances
subject: Resources
subject: Needs
subject: 710
subject: Lebenschance
subject: Unterprivilegierung
subject: Bedürfnis
subject: Milieu
subject: Lebensbedingungen
subject: Stadtviertel

description: Um Lebenschancen räumlich differenziert zu erfassen, stellt unser Beitrag in Anknüpfung an die Quartierseffekteforschung und den „capability approach“ einen Ansatz vor, der Lebenschancen als räumlich strukturierte Möglichkeiten und Wahlfreiheiten bei der Erfüllung von Bedürfnissen konzipiert. Individuelle Ressourcen entscheiden darüber, welche Möglichkeitsräume der Bedürfnisbefriedigung erschlossen werden können. Dies ist abhängig von der Lebenslage und verändert sich im Lebensverlauf, womit sich auch die Rolle des Quartiers für die Lebenschancen ändert. Anstatt von „benachteiligenden Quartieren“ zu sprechen, fokussieren wir auf benachteiligende Lebenslagen im Quartier.
description: Raumforschung und Raumordnung;Jg. 77, 2019, Heft: 4 , S. 401-415
Congresso Internacional Comemorativo do IV Centenário da morte de D. Frei Bartolomeu dos Mártires
Creators: name: Macedo, José Adílio B.
Publisher: name: Lusitania Sacra
Year: 1991

description: Lusitania Sacra, n. 3 (1991): Portugal e a Reforma Católica | Catolicismo e Liberalismo
Missionação portuguesa e encontro de culturas: Congresso Internacional de História, Lisboa, de 30 de Abril a 3 de Maio de 1992
Creators: name: Ferreira, A. Matos
Publisher: name: Lusitania Sacra
Year: 1991

description: Lusitania Sacra, n. 3 (1991): Portugal e a Reforma Católica | Catolicismo e Liberalismo
Vachellia nilotica P. J. Hurter & Mabb. 2008
Creators: name: Miller, Joseph T.
name: Seigler, David
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Vachellia
Vachellia nilotica

description: Vachellia nilotica (L.) P.J.Hurter & Mabb. , CANB 615592, AF522979, EU 811827, AF524999, AF523183, EU 811899
description: Published as part of Miller, Joseph T. & Seigler, David, 2012, Evolutionary and taxonomic relationships of Acacia s. l. (Leguminosae: Mimosoideae), pp. 217-224 in Australian Systematic Botany 25 (3) on page 224, DOI: 10.1071/sb11042, http://zenodo.org/record/4278146
Verzerrte Erwartungen von Lehrkräften in Bezug auf Schülerleistungen
Creators: name: Aksünger, Onur
Publisher: name: Freie Universität Berlin
Year: 2022
Subjects: subject: Leistungsdisparitäten
subject: Erwartungen von Lehrkräften
subject: soziale Ungleichheit
subject: Self-Fulfilling Prophecy
subject: Bildungssoziologie
subject: verzerrte Erwartungen
subject: Leistungsbeurteilung in der Schule
subject: Habitus
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::300 Sozialwissenschaften

description: Eine große Herausforderung in der Schule besteht darin, Leistungen von Schüler*innen objektiv zu beurteilen. Vielfältige Gründe tragen dazu bei. Viele Studien kommen zu dem Ergebnis, dass bei vorliegender identischer Leistung deren Beurteilung bzw. Bewertung durch die Lehrkraft oft nicht objektiv erfolgt. Es liegt nahe, dass leistungsfremde Merkmale ihren Einfluss geltend machen und die Lehrkräfte in ihrer Beurteilung und Bewertung steuern können. Eine Erklärung liefert Robert K. Merton mit seiner Theorie zur Self-Fulfilling Prophecy; für die vorliegende Arbeit der theoretische Kern: Seine Theorie, auf schulische Kontexte angewendet, vermag aufzuzeigen, dass verzerrte Erwartungen von Lehrkräften über die Leistungsfähigkeit ihrer Schüler*innen zur Genese von Leistungsdisparitäten beitragen bzw. beitragen können. In den ersten beiden Kapiteln geht diese Arbeit den Ursachen für das Entstehen von Leistungsdisparitäten basierend auf Bourdieus Theorie zur Kapitalienausstattung und dem Habitus verschiedener sozialer Gruppen nach. Ab Kapitel drei widmet sich die Arbeit dann sukzessive der Mikroebene, der Interaktion im Unterricht. Als Ergebnis aus diversen Studien steht fest, dass sich als wesentliche Einflussfaktoren auf die Verzerrung der Erwartungen der Lehrkräfte die soziale Herkunft und ein Migrationshintergrund von Schüler*innen auswirken. Für die Verzerrungen in den Erwartungen gegenüber Schüler*innen mit einem Migrationshintergrund gilt aber auch, dass die Verzerrungen je nach ethnischer Herkunft variieren, was eine differenziertere Betrachtung der Ursachen erforderlich gemacht hat.
A Multidimensional Relativistic Hydrodynamics Code with a General Equation of State
Creators: name: Choi, Eunwoo
name: Wiita, Paul J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The ideal gas equation of state with a constant adiabatic index, although commonly used in relativistic hydrodynamics, is a poor approximation for most relativistic astrophysical flows. Here we propose a new general equation of state for a multi-component relativistic gas which is consistent with the Synge equation of state for a relativistic perfect gas and is suitable for numerical (special) relativistic hydrodynamics. We also present a multidimensional relativistic hydrodynamics code incorporating the proposed general equation of state, based on the HLL scheme, which does not make use of a full characteristic decomposition of the relativistic hydrodynamic equations. The accuracy and robustness of this code is demonstrated in multidimensional calculations through several highly relativistic test problems taking into account nonvanishing tangential velocities. Results from three-dimensional simulations of relativistic jets show that the morphology and dynamics of the relativistic jets are significantly influenced by the different equation of state and by different compositions of relativistic perfect gases. Our new numerical code, combined with our proposed equation of state is very efficient and robust, and unlike previous codes, it gives very accurate results for thermodynamic variables in relativistic astrophysical flows.
description: 32 pages, 9 figures, accepted by ApJS
Vachellia oviedoensis Seigler & Ebinger
Creators: name: Miller, Joseph T.
name: Seigler, David
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Vachellia
Vachellia oviedoensis

description: Vachellia oviedoensis (R.García & M.Mejía) Seigler & Ebinger , D. Seigler 14529, EU440005, EU811857 EU812029
description: Published as part of Miller, Joseph T. & Seigler, David, 2012, Evolutionary and taxonomic relationships of Acacia s. l. (Leguminosae: Mimosoideae), pp. 217-224 in Australian Systematic Botany 25 (3) on page 224, DOI: 10.1071/sb11042, http://zenodo.org/record/4278146
title: The Struggle Is Relative: A Comparative Processing Perspective on Academic Self-Concept and Student Mental Health
Creators: name: Meyer, Thomas
name: Schlechter, Pascal
name: Schlichting, Lisa
name: Morina, Nexhmedin
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2024
Subjects: subject: 150 Psychology

description: Academic self-concept (ASC) is a prominent predictor of educational achievement and student mental health. Although it is widely accepted that ASC is fundamentally comparative, little is known about different comparison types driving students’ ASC construal and its impact on mental health. Therefore, we examined whether self-evaluations relative to criteria-based, social, temporal, dimensional, and counterfactual comparison standards represent independent factors that contribute to general ASC. Next, we assessed the association of general ASC and its comparison-based facets with achievement emotions and psychopathology. University students (N=348) completed an online survey of general ASC as well as subordinate comparison-based ASC facets, positive and negative achievement emotions, psychological distress, and symptoms of student burnout. We further assessed comparison frequency, student task values, and achievement levels. Factor analysis indicated that criteria-based, social, temporal, dimensional, and counterfactual standards reflect mainly distinct yet correlated comparison domains. General ASC construal was most strongly based on the criteria-based and social facets. Favourable general ASC predicted lower learning-related anxiety, psychological distress, and student burnout. Largely similar correlations emerged for all comparison-based ASC facets, whereby the criteria-based and social facets were particularly strong predictors of learning-related anxiety. Our findings support the view that ASC construal relies on comparisons with multiple standards. Criteria-based and social comparisons were particularly dominant and may be the main drivers of learning-related anxiety. Carefully designed follow-up studies with longitudinal designs and interventions are warranted.
description: Finanziert durch den Open-Access-Publikationsfonds der Universität Münster.
Catolicismo e liberalismo n'«O Patriota Funchalense» (1821-1823)
Creators: name: Sousa, Rui Fernando Nunes De
Publisher: name: Lusitania Sacra
Year: 1991

description: Lusitania Sacra, n. 3 (1991): Portugal e a Reforma Católica | Catolicismo e Liberalismo
The Andre-Oort conjecture for the moduli space of Abelian Surfaces
Creators: name: Pila, Jonathan
name: Tsimerman, Jacob
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G18

description: We provide an unconditional proof of the André-Oort conjecture for the coarse moduli space $\mathcal{A}_{2,1}$ of principally polarized Abelian surfaces, following the strategy outlined by Pila-Zannier.
description: 14 pages
Vachellia schaffneri Seigler & Ebinger 2006
Creators: name: Miller, Joseph T.
name: Seigler, David
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Vachellia
Vachellia schaffneri

description: Vachellia schaffneri (S.Watson) Seigler & Ebinger , D. Seigler 15931
description: Published as part of Miller, Joseph T. & Seigler, David, 2012, Evolutionary and taxonomic relationships of Acacia s. l. (Leguminosae: Mimosoideae), pp. 217-224 in Australian Systematic Botany 25 (3) on page 224, DOI: 10.1071/sb11042, http://zenodo.org/record/4278146
Exclusive vector meson electroproduction @ CLAS
Creators: name: Fradi, Ahmed
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the results of exclusive electroproduction of vector mesons on the proton at CLAS. We discuss the interpretation of these cross sections in terms of t-channel Reggeon exchanges and in terms of Generalized Parton Distributions (GPDs) formalism.
description: The 4th Workshop on Exclusive Reactions at High Momentum Transfer
Relativistic theory of string breaking in QCD
Creators: name: Simonov, Yu. A.
name: ITEP
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The QCD string breaking due to quark pair creation in the vacuum confining field, possibly accompanied by vector, scalar or Nambu-Goldstone bosons, is studied nonperturbatively. The scalar light pair creation vertex occurs due to chiral symmetry breaking and has a confining form, which is computed explicitly together with subleading vector contributions. Dependence on light quark mass and flavor is specifically studied. The dominant scalar term is in good agreement with the $^3P_0$ model and experimental data.
description: LaTeX2,17 pages,2 figures
Gluon-fusion Higgs production at NNLO for a non-standard Higgs sector
Creators: name: Furlan, Elisabetta
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider an extension of the Standard Model with an arbitrary number of heavy quarks having general couplings to the Higgs boson. We construct an effective Lagrangian integrating out quarks that are heavier than half the mass of the Higgs boson and compute the Wilson coefficient for the effective gluon-Higgs vertex through NNLO. We apply our result to a composite Higgs model with vector-like quarks coupling to the third generation quarks. In the heavy quark-mass approximation, we show that the suppression of the leading-order cross section with respect to the Standard Model does not depend on the number of vector-like multiplets introduced. We analyse the effects of QCD and electroweak corrections through three loops, as well as bottom-quark contributions through two loops.
description: 19 pages, 3 tables
Monotonic and cyclic shear response of reconstituted natural silt
Creators: name: Barnes, Daniel Mark
Publisher: name: University of British Columbia
Year: 2015

description: A triaxial apparatus was upgraded and a specimen preparation device was developed to enable monotonic and cyclic triaxial testing of low plastic reconstituted silts. The silt reconstitution technique involves consolidating silt slurry inside a cylindrical split mold, directly on the triaxial base pedestal. The slurry is carefully poured into the split mold using a flexible hose. A vertical load is then applied to slurry using a top cap and loading ram. Loading is applied in an incremental manner and the slurry is allowed to consolidate, creating a specimen firm enough to carry on with triaxial testing. The newly developed silt reconstitution device was verified with respect to specimen uniformity, saturation and test repeatability. Using the new triaxial apparatus and silt reconstitution device, the monotonic and cyclic shear response of Kamloops silt was investigated, contributing to the understanding of the material behaviour of relatively low plastic silt. Silt specimens, initially hydrostatically consolidated to various stress levels, displayed cyclic mobility type strain development during both monotonic and cyclic loading. The specimen preparation technique was capable of producing laboratory test specimens having Skempton’s B values of greater than 0.98, indicating a high level of saturation of prepared specimens. The undrained shear strength measured in undrained monotonic triaxial extension was found to be 20% lower than the undrained shear strength measured in monotonic triaxial compression. This difference is in accord with the stress-path dependency typically found in gravity deposited sediments, and is considered to be due to the anisotropic soil fabric. Liquefaction in the form of strain softening accompanied by loss of shear strength did not manifest in the reconstituted Kamloops silt regardless of the applied cyclic stress ratio (CSR). The cyclic shear resistance of the material was found to be relatively insensitive to the applied confining stress level. The cyclic mobility type stress-strain behaviour was observed in spite of the initial static shear stress bias. The potential for excess pore water pressure generation was observed to decrease significantly with increasing level of initial static shear.
Computational Techniques for Efficient Conversion of Image Files from Area Detectors
Creators: name: Sochi, Taha
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Area detectors are used in many scientific and technological applications such as particle and radiation physics. Thanks to the recent technological developments, the radiation sources are becoming increasingly brighter and the detectors become faster and more efficient. The result is a sharp increase in the size of data collected in a typical experiment. This situation imposes a bottleneck on data processing capabilities, and could pose a real challenge to scientific research in certain areas. This article proposes a number of simple techniques to facilitate rapid and efficient extraction of data obtained from these detectors. These techniques are successfully implemented and tested in a computer program to deal with the extraction of X-ray diffraction patterns from EDF image files obtained from CCD detectors.
description: 16 pages, 6 figures
D5.4 Optimised smashHit Framework
Creators: name: SmashHit Consortium
Publisher: name: Zenodo
Year: 2022
Subjects: smashHit Framework
integrated solutions
optimised solutions

description: In this public report you will find details about the optimised smashHit framework. It covers the integration of services like the Identity Manager, the Automatic Contracting Tool, the Context Sensitivity Solution, the Data Use Traceability, the Privacy & Security Tool and the graphical user interface smashHit Web Application with the smashHit platform.
Modified holographic dark energy in DGP brane world
Creators: name: Liu, Dao-Jun
name: Wang, Hua
name: Yang, Bin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, the cosmological dynamics of a modified holographic dark energy which is derived from the UV/IR duality by considering the black hole mass in higher dimensions as UV cutoff, is investigated in Dvali-Gabadaze-Porrati (DGP) brane world model. We choose Hubble horizon and future event horizon as IR cutoff respectively. And the two branches of the DGP model are both taken into account. When Hubble horizon is considered as IR cutoff, the modified holographic dark energy (HDE) behaves like an effect dark energy that modification of gravity in pure DGP brane world model acts and it can drive the expansion of the universe speed up at late time in $ε=-1$ branch which in pure DGP model can not undergo an accelerating phase. When future event horizon acts as IR cutoff, the equation of state parameter of the modified HDE can cross the phantom divide.
description: 8 pages, 4 figures, accepted for publication in PLB
Vachellia vernicosa Seigler & Ebinger 2005
Creators: name: Miller, Joseph T.
name: Seigler, David
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Vachellia
Vachellia vernicosa

description: Vachellia vernicosa (Britton & Rose) Seigler & Ebinger , D. Seigler 16062, EU 440025, EU 811878, EU 811984, EU 812048, EU 811924
description: Published as part of Miller, Joseph T. & Seigler, David, 2012, Evolutionary and taxonomic relationships of Acacia s. l. (Leguminosae: Mimosoideae), pp. 217-224 in Australian Systematic Botany 25 (3) on page 224, DOI: 10.1071/sb11042, http://zenodo.org/record/4278146
Modeling very long baseline interferometric images with the cross-entropy global optimization technique
Creators: name: Caproni, Anderson
name: Monteiro, Hektor
name: Abraham, Zulema
name: Teixeira, Danilo. M.
name: Toffoli, Rafael T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present a new technique for obtaining model fittings to VLBI images of astrophysical jets. The method minimizes a performance function proportional to the sum of the squared difference between the model and observed images. The model image is constructed by summing elliptical Gaussian sources characterized by six parameters: two-dimensional peak position, peak intensity, eccentricity, amplitude and orientation angle of the major axis. We present results for the fitting of two main benchmark jets: the first, constructed from three individual Gaussian sources, the second formed by five Gaussian sources. Both jets were analyzed by our cross-entropy technique in finite and infinite signal-to-noise regimes, the background noise chosen to mimic that found in interferometric radio maps. We show that our technique is capable of recovering the parameters of the sources with a similar accuracy to that obtained from the traditional AIPS task IMFIT when the image is relatively simple (e.g., few components). For more complex maps, our method displays superior performance in recovering the parameters of the jet components. Our methodology is also able to show quantitatively the number of individual components present in an image. An additional application of the cross-entropy technique to a real image of a BL Lac object is shown and discussed. Our results indicate that our cross-entropy technique must be used in situations involving the analysis of complex emission regions having more than three sources, even though it is substantially slower than current model fitting tasks (at least 10,000 times slower for a single processor, depending on the number of sources to be optimized). As in the case of any model fitting performed in the image plane, caution is required in analyzing images constructed from a poorly sampled (u,v) plane.
description: 24 pages, 16 figures, 10 tables accepted for publication in The Astrophysical Journal
Selection of ULIRGs in Infrared and Submm Surveys
Creators: name: Symeonidis, M.
name: Page, M. J.
name: Seymour, N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the selection characteristics of infrared and sub-mm surveys with IRAS, Spitzer, BLAST, Herschel and SCUBA and identify the range of dust temperatures these surveys are sensitive to, for galaxies in the ULIRG luminosity range (12200μm) surveys with BLAST, Herschel/ SPIRE and SCUBA are significantly more sensitive to cold ULIRGs, disfavouring warmer SEDs even at low redshifts. We evaluate observations in the context of survey selection effects, finding that the lack of cold ULIRGs in the local (z<0.1) Universe is not a consequence of selection and that the range of ULIRG temperatures seen locally is only a subset of a much larger range which exists at high redshift. We demonstrate that the local luminosity-temperature (L-T) relation, which indicates that more luminous sources are also hotter, is not applicable in the distant Universe when extrapolated to the ULIRG regime, because the scatter in observed temperatures is too large. Finally, we show that the difference between the ULIRG temperature distributions locally and at high redshift is not the result of galaxies becoming colder due to an L-T relation which evolves as a function of redshift. Instead, they are consistent with a picture where the evolution of the infrared luminosity function is temperature dependent, i.e. cold galaxies evolve at a faster rate than their warm counterparts.
description: 11 pages, 6 figures, accepted for publication in MNRAS
Sifting Limits for the Λ^2Λ^- Sieve
Creators: name: Franze, Craig
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Sifting limits for the $Λ^{2}Λ^{-}$ sieve, Selberg's lower bound sieve, are computed for integral dimensions $1
description: Submitted to Journal of Number Theory
An initial value representation for the Loschmidt echo
Creators: name: Zambrano, Eduardo
name: de Almeida, Alfredo M. Ozorio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We obtain an initial value representation for the quantum Loschmidt echo from the semiclassical theory of Wigner function evolution, together with classical first-order perturbation theory. In the limit of small actions, the amplitude of each trajectory reduces to unity, just as in the dephasing representation introduced by Vanicek, but these trajectories are here generated by the mean Hamiltonian for both the forward and the backward motion. This slight change of action may substantially alter the phase. The amplitude correction depends on the second derivative of the action. This improved dephasing approximation is verified to work even for quadratic Hamiltonians, for which the semiclassical evolution is exact, thus extending the range of application beyond its original scope in quantum chaos.
description: 2 Figures
Evidence for zinc ion sharing in metallothionein dimers provided by collision-induced dissociation
Creators: name: Afonso, Carlos
name: Hathout, Yetrib
name: Fenselau, Catherine
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Nanospray and collisionally-induced dissociation are used to evaluate the presence and absence of interstrand co-chelation of zinc ions in dimers of metallothionein. As was reported in a previous publication from this laboratory, co-chelation stabilizes the dimer to collisional activation, and facilitates asymmetrical zinc ion transfers during fragmentation. In the case of metallothionein, dimers of the holoprotein are found to share zinc ions, while dimers of metallothionein, in which one domain has been denatured, do not. Zinc ions are silent to most physicochemical probes, e.g., NMR and Mossbauer spectroscopies, and the capability of mass spectrometry to provide information on zinc complexes has widespread potential application in biochemistry.
Additional file 2 of Involvement of NEK2 and its interaction with NDC80 and CEP250 in hepatocellular carcinoma
Creators: name: Zeng, Lu
name: Fan, Xiude
name: Wang, Xiaoyun
name: Deng, Huan
name: Zhang, Xiaoge
name: Zhang, Kun
name: He, Shan
name: Li, Na
name: Han, Qunying
name: Liu, Zhengwen
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Virology

description: Additional file 2. Figure S2: The pathways that NEK2 and its interacting proteins participate in by Reactome database analysis. The red lines in the figure fireworks present the pathways that NEK2 and its interacting proteins may be involved in, and the blue lines present the pathways that NEK2 and its interacting proteins may not be involved in.
Zapoteca nervosa H. M. Hern.
Creators: name: Miller, Joseph T.
name: Seigler, David
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Zapoteca
Zapoteca nervosa

description: Zapoteca nervosa (Urb.) H.M.Hern., D. Seigler 14535, EU 439997, EU 811848, EU 811965, EU 812021
description: Published as part of Miller, Joseph T. & Seigler, David, 2012, Evolutionary and taxonomic relationships of Acacia s. l. (Leguminosae: Mimosoideae), pp. 217-224 in Australian Systematic Botany 25 (3) on page 224, DOI: 10.1071/sb11042, http://zenodo.org/record/4278146
Probing the magnetic state by linear and non linear ac magnetic susceptibility measurements in under doped manganite Nd0.8Sr0.2MnO3
Creators: name: Kundu, S.
name: Nath, T. K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have thoroughly investigated the entire magnetic states of under doped ferromagnetic insulating manganite Nd0.8Sr0.2MnO3 through temperature dependent linear and non linear complex ac magnetic susceptibility measurements. This ferromagnetic insulating manganite is found to have frequency independent ferromagnetic to paramagnetic transition temperature at around 140 K. At around 90 K (\approx T_f) the sample shows a second frequency dependent re - entrant magnetic transition as explored through complex ac susceptibility measurements. Non linear ac susceptibility measurements (higher harmonics of ac susceptibility) have also been performed (with and without the superposition of a dc magnetic field) to further investigate the origin of this frequency dependence (dynamic behavior at this re-entrant magnetic transition). Divergence of 3rd order susceptibility in the limit of zero exciting field indicates a spin glass like freezing phenomena. However, large value of spin relaxation time (?0= 10-8 s) and small value of coercivity (~22 Oe) obtained at low temperature (below T_f) from critical slowing down model and dc magnetic measurements, respectively, are in contrast with what generally observed in a canonical spin glass (?0 = 10-12 - 10-14 s and very large value of coercivity below freezing temperature). We have attributed our observation to the formation of finite size ferromagnetic clusters which are formed as consequence of intrinsic separation and undergo cluster glass like freezing below certain temperature in this under doped manganite. The results are supported by the electronic - and magneto - transport data.
Handover Control for WCDMA Femtocell Networks
Creators: name: Chowdhury, Mostafa Zaman
name: Jang, Yeong Min
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: The ability to seamlessly switch between the macro networks and femtocell networks is a key driver for femtocell network deployment. The handover procedures for the integrated femtocell/macrocell networks differ from the existing handovers. Some modifications of existing network and protocol architecture for the integration of femtocell networks with the existing macrocell networks are also essential. These modifications change the signal flow for handover procedures due to different 2-tier cell (macrocell and femtocell) environment. The handover between two networks should be performed with minimum signaling. A frequent and unnecessary handover is another problem for hierarchical femtocell/macrocell network environment that must be minimized. This work studies the details mobility management schemes for small and medium scale femtocell network deployment. To do that, firstly we present two different network architectures for small scale and medium scale WCDMA femtocell deployment. The details handover call flow for these two network architectures and CAC scheme to minimize the unnecessary handovers are proposed for the integrated femtocell/macrocell networks. The numerical analysis for the proposed M/M/N/N queuing scheme and the simulation results of the proposed CAC scheme demonstrate the handover call control performances for femtocell environment.
description: Published in "The Journal of Korea Information and Communication Society" for the volume of May 2010
SOBRINHO, [António Joaquim] Alves Mota - Agostinho Mota (1875-1938). A difícil arte de ser franciscano. Braga: Editorial Franciscana, 1988, 208 p.
Creators: name: Rema, H. Pinto
Publisher: name: Lusitania Sacra
Year: 1990

description: Lusitania Sacra, n. 2 (1990): Pensamento e Obra do Cardeal Cerejeira: no Centenário do seu Nascimento
Electrically detected magnetic resonance of neutral donors interacting with a two-dimensional electron gas
Creators: name: Lo, C. C.
name: Lang, V.
name: George, R. E.
name: Morton, J. J. L.
name: Tyryshkin, A. M.
name: Lyon, S. A.
name: Bokor, J.
name: Schenkel, T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have measured the electrically detected magnetic resonance of channel-implanted donors in silicon field-effect transistors in resonant X- ($9.7\:$GHz) and W-band ($94\:$GHz) microwave cavities, with corresponding Zeeman fields of $0.35\:$T and $3.36\:$T, respectively. It is found that the conduction electron resonance signal increases by two orders of magnitude from X- to W-band, while the hyperfine-split donor resonance signals are enhanced by over one order of magnitude. We rule out a bolometric origin of the resonance signals, and find that direct spin-dependent scattering between the two-dimensional electron gas and neutral donors is inconsistent with the experimental observations. We propose a new polarization transfer model from the donor to the conduction electrons as the main contributer to the spin resonance signals observed.
description: 5 pages, 3 figures
Additional file 9 of Analysing the meta-interaction between pathways by gene set topological impact analysis
Creators: name: Yan, Shen
name: Chi, Xu
name: Chang, Xiao
name: Tian, Mengliang
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Plant Biology

description: Additional file 9. Additional discussion of the related issues. (DOCX 15 kb)
VALENÇA, Manuel - O Órgão na História e na Arte e A Arte Organística em Portugal (1326-1750). Braga: Editorial Franciscana, 1987 e 1990
Creators: name: Lopes, José Afonso
Publisher: name: Lusitania Sacra
Year: 1990

description: Lusitania Sacra, n. 2 (1990): Pensamento e Obra do Cardeal Cerejeira: no Centenário do seu Nascimento
A Chiral Magnetic Effect from AdS/CFT with Flavor
Creators: name: Hoyos, Carlos
name: Nishioka, Tatsuma
name: O'Bannon, Andy
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For (3+1)-dimensional fermions, a net axial charge and external magnetic field can lead to a current parallel to the magnetic field. This is the chiral magnetic effect. We use gauge-gravity duality to study the chiral magnetic effect in large-Nc, strongly-coupled N=4 supersymmetric SU(Nc) Yang-Mills theory coupled to a number Nf << Nc of N=2 hypermultiplets in the Nc representation of SU(Nc), i.e. flavor fields. Specifically, we introduce an external magnetic field and a time-dependent phase for the mass of the flavor fields, which is equivalent to an axial chemical potential for the flavor fermions, and we compute holographically the resulting chiral magnetic current. For massless flavors we find that the current takes the value determined by the axial anomaly. For massive flavors the current appears only in the presence of a condensate of pseudo-scalar mesons, and has a smaller value than for massless flavors, dropping to zero for sufficiently large mass or magnetic field. The axial symmetry in our system is part of the R-symmetry, and the states we study involve a net flow of axial charge to the adjoint sector from an external source coupled to the flavors. We compute the time rate of change of axial charge and of energy both in field theory and from holography, with perfect agreement. In contrast to previous holographic models of the chiral magnetic effect, in our system the vector current is conserved and gauge-invariant without any special counterterms.
description: 54 pages, 18 eps files in 6 figures
RODRIGO DA CUNHA, Arcebispo - História eclesiástica dos Arcebispos de Braga. Reprodução fac-similada com nota de apresentação de José Marques. 2 vols., Braga, 1989
Creators: name: Azevedo, Carlos A. Moreira
Publisher: name: Lusitania Sacra
Year: 1990

description: Lusitania Sacra, n. 2 (1990): Pensamento e Obra do Cardeal Cerejeira: no Centenário do seu Nascimento
Development and evaluation of a novel approach to producing uniform 3-D tumor spheroid constructs
Creators: name: Karamikamkar, Solmaz
Publisher: name: University of British Columbia
Year: 2016

description: In vitro tumor spheroid models have been developed using microfluidic systems to generate 3-D hydrogel beads containing components of alginate and ECM protein, such as collagen, with high uniformity and throughput. During bead gelation, alginate acts as a fast gelling component helping to maintain the spherical shape of beads and to prevent adjacent or underlying beads from coalescing when working with the slower gelling temperature and pH-sensitivity of collagen components. There are also well-known limitations in using microfluidic systems when working with temperature-sensitive components of collagen type I, and it is determined that to produce uniform hydrogel droplets through a microfluidic system, the mixtures must be homogeneous. However, the issue of collagen’s sensitivity to temperature causes concern for chunks of collagen gel inside of the mixture before bead encapsulation; therefore causing the mixture to become non-uniform and risking chip clogging. In order to overcome this limitation, previous approaches have used a cooling system during bead encapsulation while tumor cells were also present in the mixture, but this procedure assisted in postponing collagen gelation prior to bead production and potentially contributing to a delay in cell proliferation. Here a novel yet simple method is developed to prepare homogeneous pre-bead-encapsulation-mixtures containing collagen through ultrasonication, while extending cell viability and proliferation. This method allows the cultivation of homogenous TS cultures with high uniformity and compact structure, and not only maintains cell viability but also stimulates the proliferation of cells in alginate/collagen hydrogel bead cultures. Depending on the sonication parameters, time and temperature, gelation of collagen is controlled by small sized fibrils to thick fibers. Human-source-Michigan-Cancer-Foundation-7 (MCF-7) cells isolated from a breast cancer cell line are successfully incorporated into alginate/collagen mixtures, followed by sonication, and then bead production. After bead gelation, the encapsulated MCF-7 cells remained viable and proliferated to form uniform TSs when the beads contained alginate and collagen. Results indicate that ultrasound treatment provides a powerful technique to change the structure of collagen from fiber to fibril, and to disperse collagen fibers in the mixture homogeneously for an application to generate uniform hydrogel beads and spheroids while not disturbing cell proliferation.