Search results for "paradox"

"Mais... je ne visite pas!". Une approche ethnographique de l'usage faible des œuvres

2013

Some photographic exhibitions are nowadays set outdoors in order to popularize art. Through a case study, this article examines the "weak use of images" as it is practised in public places, by passers-by who do not identify art pieces as such, and do not consider themselves as visitors. Their relation to art pieces, in this context, is built on an apparent paradox (they relate and at the same time do not relate to the pieces), and constitutes the minor mode of situations and observed interactions (this relation does not organise or structure the latter).

Paradoxes of Mentoring: An Ethnographic Study of a Mentoring Programme for Highly-educated Women with Migrant Backgrounds

2019

This article explores paradoxes that emerge in the mentoring of highly-educated, female, foreign-born job-seekers in Finland. Theoretically, the study is linked to the growing body of research scrutinising the integration or discrimination of migrants in working life. It analyses cultural practices and ideas that are visible and affect the mentoring interaction. On a more practical level, the paper determines how the mentors and mentees experience the mentoring, and how intercultural mentoring could be improved in order to promote mentees’ employment. The article is based on ethnography and 11 semi-structured interviews. Two major paradoxes and their links to cultural meanings were identifi…

Artrepreneurs and the autonomy paradox

2022

In this article, we examine the views that young (under 35 years) freelancers and entrepreneurs who work as professional artists in Finland have of their work. We refer to them as artrepreneurs. Our data sample is composed of the responses of entrepreneurs and freelancers (n = 209) from a survey data on young artists (n = 565) collected in 2017. By using a set of quantitative methods we study the impact of different factors on the job satisfaction experienced by freelancers and entrepreneurs, the nature and motivation factors of their work, as well as their status and livelihood. In our interpretative framework, central concepts are the “hybridity” and “precarity” of artists’ work and “auto…

Adaptive control of a seven mode truncation of the Kolmogorov flow with drag

2009

Abstract We study a seven dimensional nonlinear dynamical system obtained by a truncation of the Navier–Stokes equations for a two dimensional incompressible fluid with the addition of a linear term modelling the drag friction. We show the bifurcation sequence leading from laminar steady states to chaotic solutions with increasing Reynolds number. Finally, we design an adaptive control which drives the state of the system to the equilibrium point representing the stationary solution.

High Reynolds number Navier-Stokes solutions and boundary layer separation induced by a rectilinear vortex

2013

Abstract We compute the solutions of Prandtl’s and Navier–Stokes equations for the two dimensional flow induced by a rectilinear vortex interacting with a boundary in the half plane. For this initial datum Prandtl’s equation develops, in a finite time, a separation singularity. We investigate the different stages of unsteady separation for Navier–Stokes solution at different Reynolds numbers Re = 103–105, and we show the presence of a large-scale interaction between the viscous boundary layer and the inviscid outer flow. We also see a subsequent stage, characterized by the presence of a small-scale interaction, which is visible only for moderate-high Re numbers Re = 104–105. We also investi…

Basic Research Methods for Data Collection

2021

Exudate-based diabetic macular edema detection in fundus images using publicly available datasets

2010

International audience; Diabetic macular edema (DME) is a common vision threatening complication of diabetic retinopathy. In a large scale screening environment DME can be assessed by detecting exudates (a type of bright lesions) in fundus images. In this work, we introduce a new methodology for diagnosis of DME using a novel set of features based on colour, wavelet decomposition and automatic lesion segmentation. These features are employed to train a classifier able to automatically diagnose DME through the presence of exudation. We present a new publicly available dataset with ground-truth data containing 169 patients from various ethnic groups and levels of DME. This and other two publi…

Cortázar e Macedonio : Le discrete rivoluzioni dell’umorismo decostruttivo

2016

Whether it is the chaos created by the extreme and comical disconnection of the paradoxes of the ‘ausencia’ of Macedonio or the magical fragmentation of the stories in Cortázar’s Historias de cronopios y de famas, conceptual humor triggers a powerful gnoseological revolution in the reader with undisputable power. From the ‘logos’ of the absence of Macedonio in Cortázar, one passes to the possibility of forgetting the ‘other world’, hidden behind absence – a change in focus that presumes a more profound structural shift which further destabilizes the reader. The route of deconstruction and simulation begun by Macedonio Fernandez in his texts seems to reach its conclusion in the works of Cort…

Paradoxical embolism after a femoral fracture

1998

The foramen ovale is anatomically open in 25 % of individuals, but functionally closed by the higher pressure in the left antrum. Right-to-left shunt and subsequent paradoxical embolism may occur when pressure in the left antrum rises, for example, as a result of pulmonary embolism. In the present case we demonstrate a patient who presented 20 days after osteosynthetic treatment of a femoral fracture with word-finding deficits. Cerebral MRT revealed a fresh ischemic insult. Duplex ultrasound of the legs showed a fresh thrombosis of the superficial femoral vein and scintigraphy of the lungs detected pulmonary embolism. Transesophageal contrast echocardiography trapped a hemodynamically spont…

The dialectics of spatial performances: The interplay of tensions in activity-based organizing

2019

Navigating organizational workspace is often plagued with tensions that emerge from the interplay of intended designs with organizational activities and lived experiences. These tensions are evident in research findings, such as inconsistencies in the ways that employees react to new workplace designs. They call on scholars to rethink organizational space, not as a concrete, static, or ready-made ‘thing’, but as a set of ongoing performances that enact particular practices, clashes among opposites, and organizational tensions. Based on research in a Nordic company, this study reveals how tensions and responses to them in an activity-based office generate creative alternatives that enhance …