Search results for "REPRESENTATION"
showing 10 items of 1710 documents
On a class of generalised Schmidt groups
2015
In this paper families of non-nilpotent subgroups covering the non-nilpotent part of a finite group are considered. An A 5 -free group possessing one of these families is soluble, and soluble groups with this property have Fitting length at most three. A bound on the number of primes dividing the order of the group is also obtained.
Formal Group Laws for Affine Kac-Moody groups and group quantization
1987
We describe a method for obtaining Formal Group Laws from the structure constants of Affine Kac-Moody groups and then apply a group manifold quantization procedure which permits construction of physical representations by using only canonical structures on the group. As an intermediate step we get an explicit expression for two-cocycles on Loop Groups. The programme is applied to the AffineSU(2) group.
Exploring aesthetics in design : implications for human–computer interaction
2018
In this article, I enter into a discussion of how aesthetics can be conceptualized in the context of design and related to the field of human–computer interaction (HCI). I contest the current trend in design aesthetics that primarily focuses on beauty, pleasure, and the creation of emotional appeal by means of the sensual and visual elements of the design. Conversely, I advocate for a series of concepts related to aesthetics, such as reflectivity, representation, and epistemology, as these point aesthetics beyond the immediate sensual and visual. Through these concepts, a deeper understanding of the character of the relationship between humans and design can be obtained: Design objects and …
Analytic energy gradients for the spin-free exact two-component theory using an exact block diagonalization for the one-electron Dirac Hamiltonian.
2011
We report the implementation of analytic energy gradients for the evaluation of first-order electrical properties and nuclear forces within the framework of the spin-free (SF) exact two-component (X2c) theory. In the scheme presented here, referred to in the following as SFX2c-1e, the decoupling of electronic and positronic solutions is performed for the one-electron Dirac Hamiltonian in its matrix representation using a single unitary transformation. The resulting two-component one-electron matrix Hamiltonian is combined with untransformed two-electron interactions for subsequent self-consistent-field and electron-correlated calculations. The "picture-change" effect in the calculation of p…
Recognising a hand by grasp.
2000
The present study aimed to demonstrate that motor representations are used to recognise biological stimuli. In three experiments subjects were required to judge laterality of hands and forearms presented by pictures. The postures of the hands were those assumed when holding a small, medium and large sphere. In experiment 1, the sphere held in hand was presented, whereas in experiment 2 it was absent. In experiment 3, the same images, showing holding-a-sphere hands, as in experiment 1 were presented, but without forearm. In all experiments one finger of each hand could be absent. In experiment 1 recognition time was longer for those hand postures for which the corresponding grasping motor ac…
Synthetic individual binaural audio delivery by pinna image processing
2014
Purpose – The purpose of this paper is to present a system for customized binaural audio delivery based on the extraction of relevant features from a 2-D representation of the listener’s pinna. Design/methodology/approach – The most significant pinna contours are extracted by means of multi-flash imaging, and they provide values for the parameters of a structural head-related transfer function (HRTF) model. The HRTF model spatializes a given sound file according to the listener’s head orientation, tracked by sensor-equipped headphones, with respect to the virtual sound source. Findings – A preliminary localization test shows that the model is able to statically render the elevation of a vi…
To Be Continued: Serial Narration, Chronic Disease, and Disability.
2019
This article explores the representation of Michael J. Fox's Parkinson's disease in the television series The Good Wife and The Michael J. Fox Show. We suggest that serial narration offers intriguing ways to rethink the function and meaning of narratives in health contexts, and that the episodic narrative form of television series may afford insights into the structure of medical encounters. Specifically, we examine to what extent serial narration, with its focus on continuity and repetition, might help reimagine the typical narrative of decline, which is implicit in the terminology of neurodegeneration, as well as the narrative of (premature) closure or finitude that often accompanies a di…
The representation of athletes during Paralympic and Olympic Games: a Foucauldian analysis of the construction of difference in newspapers
2021
Our first aim was to evaluate the representation of athletes in the top newspapers in a continental European country during two editions of the Paralympics and Olympics Games (London 2012 and Rio 2...
Re-Imagining the Border: Border Art as a Space of Critical Imagination and Creative Resistance
2014
Contemporary world is increasingly marked by borders, fences and walls, which run through the spaces we live in. Borders are the result of a composite articulation of material aspects, concerning their external realisation, and structures of imagination, symbolic constructs and conceptual formations that involve the border and make it meaningful. In this dynamic and mutable field, artistic practices and interventions can interrupt and alterate the logic of the border, opening up a space of resistance and critical imagination, where the transparent, immutable and essentialist representation of the border is constantly challenged. Works of artists such as Bajevic, Hatoum, Salcedo, Rosver and …
Many Images for a Continent. An Introduction
2021
For too long, the European Union has presented itself as a haven for bureaucrats, united by a hegemonic will practiced through the hyper-standardization of every aspect of social life. The result of this representation, so often weaponised by political forces hostile to the European project, has also been the reason the many images (normative acts, community projects, cultural initiatives etc.) that constitute the European discourse struggle to be recognized and read into a basic everyday narrative capable of shaping a European horizon of shared destinies. This book recognises the importance of the European discourse in its symbolic dimension and the need for it to be circulated via a wide-…