203 research outputs found
Building joint capacity: the role of European Union agencies in the management of trans-boundary crises
Solitary and compact-like shear waves in the bulk of solids
We show that a model proposed by Rubin, Rosenau, and Gottlieb [J. Appl. Phys.
77 (1995) 4054], for dispersion caused by an inherent material characteristic
length, belongs to the class of simple materials. Therefore, it is possible to
generalize the idea of Rubin, Rosenau, and Gottlieb to include a wide range of
material models, from nonlinear elasticity to turbulence. Using this insight,
we are able to fine-tune nonlinear and dispersive effects in the theory of
nonlinear elasticity in order to generate pulse solitary waves and also bulk
travelling waves with compact support
Reputation and Accountability Relationships: Managing Accountability Expectations through Reputation
ArticleAccountability is said to be about the management of expectations. Empirical studies reveal considerable variation in organizational interest, intensity and investment in accountability relationships. Less is known, however, as to what explains these observed variations. Drawing on accountability and reputation-concerned literatures, this paper argues that a reputation-based perspective to accountability offers an underlying logic that explains how account-giving actors and account-holding forums actually manage these expectations, how organisations make sense of and prioritise among accountability responsibilities. Reputational considerations act as a filtering mechanism of external demands and help account for variations in degrees of interest in, and intensity of, accountability. The resulting accountability outcomes are co-produced by the reputational investment of both account-giver and account-holder, resulting in distinct accountability constellations and outcome
Meeting expectations in the EU regulatory state? Regulatory communications amid conflicting institutional demands
Horizon 2020(H2020)716439The politics and administration of institutional chang
Reputation and accountability relationships: managing accountability expectations through reputation
Accountability is said to be about the management of expectations. Empirical studies reveal considerable variation in organizational interest, intensity and investment in accountability relationships. Less is known, however, as to what explains these observed variations. Drawing on accountability and reputation-concerned literatures, this paper argues that a reputation-based perspective to accountability offers an underlying logic that explains how account-giving actors and account-holding forums actually manage these expectations, how organisations make sense of and prioritise among accountability responsibilities. Reputational considerations act as a filtering mechanism of external demands and help account for variations in degrees of interest in, and intensity of, accountability. The resulting accountability outcomes are co-produced by the reputational investment of both account-giver and account-holder, resulting in distinct accountability constellations and outcome
A multidimensional reputation barometer for public agencies: a validated instrument
Horizon 2020(H2020)716439Public Administration - OU
OPTICAL AND PHOTOCATALYTIC PROPERTIES OF ELECTROSPUN ZnO FIBERS
ZnO nanofibers were obtained by electrospinning a solution of zinc acetate dihydrate and polyvinylpyrrolidone in N,N-dimethylformamide, followed by calcination at 500, 650 or 800 °C for 1 h. X-ray diffraction, selected area electron diffraction, scanning electron microscopy, transmission electron microscopy, reflectance spectroscopy and photoluminescence spectroscopy were used for the characterization of the resulting fibers. The thermally treated samples exhibit ZnO single phase with polycrystalline hexagonal structure. The morphological investigation revealed an accentuated contraction process during calcination, as well as the increase of the crystallite size and the appearance of a breaking tendency with the calcination temperature enhancement. Both UV and Visible emissions under excitation at 350 nm were showed by the optical studies, which also led to band gap values slightly lower than those reported for similar one-dimensional nanostructures. In order to assess the photocatalytic activity of ZnO fibers, the photodegradation of methylene blue in aqueous medium (10 -3 M) under UV irradiation (368 nm) was analyzed
Modular symbols in Iwasawa theory
This survey paper is focused on a connection between the geometry of
and the arithmetic of over global fields,
for integers . For over , there is an explicit
conjecture of the third author relating the geometry of modular curves and the
arithmetic of cyclotomic fields, and it is proven in many instances by the work
of the first two authors. The paper is divided into three parts: in the first,
we explain the conjecture of the third author and the main result of the first
two authors on it. In the second, we explain an analogous conjecture and result
for over . In the third, we pose questions for general
over the rationals, imaginary quadratic fields, and global function fields.Comment: 43 page
Global generalized solutions for Maxwell-alpha and Euler-alpha equations
We study initial-boundary value problems for the Lagrangian averaged alpha
models for the equations of motion for the corotational Maxwell and inviscid
fluids in 2D and 3D. We show existence of (global in time) dissipative
solutions to these problems. We also discuss the idea of dissipative solution
in an abstract Hilbert space framework.Comment: 27 pages, to appear in Nonlinearit
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