369 research outputs found
Функционирование маркетинговых терминов в английском языке и способы их перевода на русский язык
Целью исследования является определение способов перевода английской терминологии на русский
язык
Study of pulsed neon–xenon VUV radiating low pressure plasmas for mercury free fluorescent sign optimization
Pseudo-potentials and loading surfaces for an endochronic plasticity theory with isotropic damage
The endochronic theory, developed in the early 70s, allows the plastic
behavior of materials to be represented by introducing the notion of intrinsic
time. With different viewpoints, several authors discussed the relationship
between this theory and the classical theory of plasticity. Two major
differences are the presence of plastic strains during unloading phases and the
absence of an elastic domain. Later, the endochronic plasticity theory was
modified in order to introduce the effect of damage. In the present paper, a
basic endochronic model with isotropic damage is formulated starting from the
postulate of strain equivalence. Unlike the previous similar analyses, in this
presentation the formal tools chosen to formulate the model are those of convex
analysis, often used in classical plasticity: namely pseudopotentials,
indicator functions, subdifferentials, etc. As a result, the notion of loading
surface for an endochronic model of plasticity with damage is investigated and
an insightful comparison with classical models is made possible. A damage
pseudopotential definition allowing a very general damage evolution is given
Gluon mass generation in the PT-BFM scheme
In this article we study the general structure and special properties of the
Schwinger-Dyson equation for the gluon propagator constructed with the pinch
technique, together with the question of how to obtain infrared finite
solutions, associated with the generation of an effective gluon mass.
Exploiting the known all-order correspondence between the pinch technique and
the background field method, we demonstrate that, contrary to the standard
formulation, the non-perturbative gluon self-energy is transverse
order-by-order in the dressed loop expansion, and separately for gluonic and
ghost contributions. We next present a comprehensive review of several subtle
issues relevant to the search of infrared finite solutions, paying particular
attention to the role of the seagull graph in enforcing transversality, the
necessity of introducing massless poles in the three-gluon vertex, and the
incorporation of the correct renormalization group properties. In addition, we
present a method for regulating the seagull-type contributions based on
dimensional regularization; its applicability depends crucially on the
asymptotic behavior of the solutions in the deep ultraviolet, and in particular
on the anomalous dimension of the dynamically generated gluon mass. A
linearized version of the truncated Schwinger-Dyson equation is derived, using
a vertex that satisfies the required Ward identity and contains massless poles
belonging to different Lorentz structures. The resulting integral equation is
then solved numerically, the infrared and ultraviolet properties of the
obtained solutions are examined in detail, and the allowed range for the
effective gluon mass is determined. Various open questions and possible
connections with different approaches in the literature are discussed.Comment: 54 pages, 24 figure
A critique of Paulo Freire’s perspective on human nature to inform the construction of theoretical underpinnings for research
From Crossref via Jisc Publications RouterHistory: epub 2020-04-20, issued 2020-04-20Article version: VoRKate Sanders - ORCID 0000-0003-3516-7030
https://orcid.org/0000-0003-3516-7030This article presents a critique of Paulo Freire's philosophical perspective on human nature in the context of a doctoral research study to explore “muchness” or nurses’ subjective experience of well‐being; and demonstrates how this critique has informed the refinement of the theoretical principles used to inform research methodology and methods. Engaging in philosophical groundwork is essential for research coherence and integrity. Through this groundwork, largely informed by Freire's critical pedagogy and his ideas on humanization, I recognized the need to clarify my understanding of the concepts of persons and personhood and how this related to Freire's use of the term human beings. This clarification process is essential to ensure congruence between the theoretical principles that I draw from his work and my beliefs about persons, personhood and person‐centredness. The article begins with a brief introduction to the research, followed by an overview of Freire's philosophical perspectives, and subsequently, the critique process is presented and discussed. This process involved engaging with the vast literature and debates about what it means to be a person, to make sense of the often complex and contradictory arguments. Eventually, three headings emerged that helped me to frame my evolving understanding: Our species: human beings ; The kind that we are: human nature ; and This person that I am: personhood. Through this process of exploration, I recognized that Freire's perspective on human nature (a) foregrounded cognitive rationality, which presented itself as a limitation when considering my ontological beliefs and the focus of my research, leading me to draw on the work of Mark Johnson and his ideas about embodiment to help me to further develop my theoretical principles; (b) focused on the “collective” rather than individuals, which is a shortcoming in relation to person‐centred research that acknowledges the uniqueness of participants.21pubpub
Sustained IFN signaling is associated with delayed development of SARS-CoV-2-specific immunity.
Plasma RNAemia, delayed antibody responses and inflammation predict COVID-19 outcomes, but the mechanisms underlying these immunovirological patterns are poorly understood. We profile 782 longitudinal plasma samples from 318 hospitalized patients with COVID-19. Integrated analysis using k-means reveals four patient clusters in a discovery cohort: mechanically ventilated critically-ill cases are subdivided into good prognosis and high-fatality clusters (reproduced in a validation cohort), while non-critical survivors segregate into high and low early antibody responders. Only the high-fatality cluster is enriched for transcriptomic signatures associated with COVID-19 severity, and each cluster has distinct RBD-specific antibody elicitation kinetics. Both critical and non-critical clusters with delayed antibody responses exhibit sustained IFN signatures, which negatively correlate with contemporaneous RBD-specific IgG levels and absolute SARS-CoV-2-specific B and CD4 <sup>+</sup> T cell frequencies. These data suggest that the "Interferon paradox" previously described in murine LCMV models is operative in COVID-19, with excessive IFN signaling delaying development of adaptive virus-specific immunity
Riparian vegetation in the alpine connectome : terrestrial-aquatic and terrestrial-terrestrial interactions
Beyond the public and private divide: Remapping transnational climate governance in de 21th century
This article provides a first step towards a better theoretical and empirical knowledge of the emerging arena of transnational climate governance. The need for such a re-conceptualization emerges from the increasing relevance of non-state and transnational approaches towards climate change mitigation at a time when the intergovernmental negotiation process has to overcome substantial stalemate and the international arena becomes increasingly fragmented. Based on a brief discussion of the increasing trend towards transnationalization and functional segmentation of the global climate governance arena, we argue that a remapping of climate governance is necessary and needs to take into account different spheres of authority beyond the public and international. Hence, we provide a brief analysis of how the public/private divide has been conceptualized in Political Science and International Relations. Subsequently, we analyse the emerging transnational climate governance arena. Analytically, we distinguish between different manifestations of transnational climate governance on a continuum ranging from delegated and shared public-private authority to fully non-state and private responses to the climate problem. We suggest that our remapping exercise presented in this article can be a useful starting point for future research on the role and relevance of transnational approaches to the global climate crisis
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