Search results for "present"
showing 10 items of 3598 documents
Vena cava resection and bypass for recurrent cervical cancer
2021
A 42-year-old woman was diagnosed with a second para-aortic cervical cancer. The patient had undergone a radical hysterectomy with pelvic lymphadenectomy for FIGO stage IB1 squamous cervical cancer 3 years prior to current presentation. No adjuvant treatment was performed after the primary surgery
Intracranial venous sinus thrombosis as unusual presentation of Bing-Neel syndrome: case illustration.
2017
A 42-year-old woman presented with progressive blurred vision, vertigo, and headache. MRI showed bilateral intraocular protrusion of the optic nerve head and right transverse sinus thrombosis . Low-molecular-weight heparin was administered without symptom relief. Additional MRI showed left frontoparietal arachnoid space obliteration by pathological tissue, and infiltration of the sagittal and right transverse sinuses. After Gd administration, we observed diffuse enhancement of the dura in the left cerebral hemisphere and subdural and epicranial soft-tissue infiltration . A biopsy of the extra-axial tissue was performed. Histological examination showed a neoplasm composed of large cells with…
Quantifying stenosis in renal arteriograms: a fuzzy syntactic analysis.
1999
AbstractThe introduction of fuzzy logic improves a system for the automatic quantification of renal artery lesions seen in digital subtraction angiograms. A two-step approach has been followed. An earlier system based on non-fuzzy syntactic analysis provided a clear symbolic description of the stenotic lesions. Although this system worked correctly, it did not take into account the variability and uncertainty inherent to image processing and to knowledge on the reference diameter. This system has been improved by the introduction of fuzzy logic in the representation of the reference diameter. It provides a description of the stenosis in terms of fuzzy quantities. To illustrate the benefits …
Reference Standards for Software Evaluation
1990
AbstractThe field of automated ECG analysis was one of the earliest topics in Medical Informatics and may be regarded as a model both for computer-assisted medical diagnosis and for evaluating medical diagnostic programs. The CSE project has set reference standards of two kinds: In a broad sense, a standard how to perform a comprehensive evaluation study, in a narrow sense, standards as specific references for evaluating computer ECG programs. The evaluation methodology used within the CSE project is described as a basis for presentation of results which are published elsewhere in this issue.
Thompson Sampling Guided Stochastic Searching on the Line for Non-stationary Adversarial Learning
2015
This paper reports the first known solution to the N-Door puzzle when the environment is both non-stationary and deceptive (adversarial learning). The Multi-Armed-Bandit (MAB) problem is the iconic representation of the exploration versus exploitation dilemma. In brief, a gambler repeatedly selects and play, one out of N possible slot machines or arms and either receives a reward or a penalty. The objective of the gambler is then to locate the most rewarding arm to play, while in the process maximize his winnings. In this paper we investigate a challenging variant of the MAB problem, namely the non-stationary N-Door puzzle. Here, instead of directly observing the reward, the gambler is only…
On Concentric Circles of Being Revisited: Friedrich Nietzsche and the Idea of Eternal Recurrence
2012
The circle, or ouroboros, is a perfect shape: within its depths lie both the beginning and the end. Things are repeated; people encounter the same situations again and again. Concentricity dwells in the spirit of a place, as it does in the ‘I’ of a person. A memory can bring to life the circular nature of existence, allowing the subject to travel recurrently through previously realised pasts. Photographs and literature are also capable of transferring the bygone into the freshness of the present moment. The aesthetics of inhabited space is articulated in architectural shapes. It is an essential part of the collective national narrative, a cultural philosophy narrated into the fabric of bein…
Polar Bear in 'Fortitude'. Affective Aesthetics and Politics of Climate Change
2021
In the first season of the television Eco Noir crime series “Fortitude” (2015) the polar bear appears as a sticky object that embodies an ambiguous affective charge as an icon of global warming. This article discusses the ways in which the polar bear evokes viewer affect in the series through two discourses. The first one relates to violence, essentially present in crime narratives, and how the human and nonhuman animal are positioned in relation to global warming, violence and each other. It raises questions of place and belonging in a local and global context and examines how the polar bear is constructed in terms of stranger danger and victimization in relation to human animals and the t…
Deafferentation and pointing with visual double-step perturbations
1999
The capability of reprogramming movement responses following changes in the visual goal has been studied through the double-step paradigm. These studies have shown that: (a) continuous internal feedback-loops correct unconsciously the dynamic errors throughout the movement; (b) proprioceptive information and/or the efference copy have a privileged status among central processes, insuring on-line regulation of the initial motor commands; and (c) generation of the motor program starts after target presentation, and is continuously updated in the direction of the current internal representation of the target, at least until the onset of hand movement. This main corrective process of the initia…
Nuevas terminaciones para nuevas realidades: performatividad, afiliación y atenuación en la comunidad de habla LGTBI
2021
Este artículo presenta un estudio sobre las terminaciones -i/-is y -e/-es en la comunidad de habla LGTBI. La motivación de esta investigación viene de la representación del género no binario en la lengua española, marcado recientemente por las terminaciones en -e, que además es utilizado para crear un plural inclusivo que evite el masculino genérico. En la misma línea, se han detectado usos, dentro de la comunidad de habla LGTBI, de otro grupo de terminaciones (-i/-is) que parecen anular la distinción de género. Los datos han sido extraídos de una encuesta sociolingüística elaborada por el autor de este trabajo. En la parte sociolingüística se pretende perfilar el tipo de usuario de estas t…
Darstellung von Hyperebenen in verallgemeinerten affinen Räumen durch Moduln
1994
The starting point of this article is a generalized concept of affine space which includes all affine spaces over unitary modules. Our main result is a representation theorem for hyperplanes of affine spaces: Every hyperplane which satisfies a weak richness condition is induced by a module. 1