Durham University

About: Durham University is a education organization based out in Durham, United Kingdom. It is known for research contribution in the topics: Population & Galaxy. The organization has 39385 authors who have published 82311 publications receiving 3110994 citations. The organization is also known as: University of Durham & Gallery of Durham University.

Software maintenance and evolution: a roadmap

Abstract: The production of new management approaches to evolution, leading to understanding of the relationships between technology and business. How can software be designed so that it can easily be evolved? More effective tools and methods for program comprehension for both code and data A better formalism and conceptualisation of 'maintainability'; how do we measure it? The development of a service-based model of software, to replace a product view. better

A model of saccade generation based on parallel processing and competitive inhibition.

Abstract: During active vision, the eyes continually scan the visual environment using saccadic scanning movements. This target article presents an information processing model for the control of these movements, with some close parallels to established physiological pro- cesses in the oculomotor system. Two separate pathways are concerned with the spatial and the temporal programming of the move- ment. In the temporal pathway there is spatially distributed coding and the saccade target is selected from a "salience map." Both path- ways descend through a hierarchy of levels, the lower ones operating automatically. Visual onsets have automatic access to the eye control system via the lower levels. Various centres in each pathway are interconnected via reciprocal inhibition. The model accounts for a num- ber of well-established phenomena in target-elicited saccades: the gap effect, express saccades, the remote distractor effect, and the global effect. High-level control of the pathways in tasks such as visual search and reading is discussed; it operates through spatial se- lection and search selection, which generally combine in an automated way. The model is examined in relation to data from patients with unilateral neglect.

The Self and Autobiographical Memory: Correspondence and Coherence

Abstract: A modified version of Conway and Pleydell-Pearce's Self Memory System (SMS) account of autobiographical memory and the self is introduced. Modifications include discussion of a fundamental tension between adaptive correspondence (experience-near sensory-perceptual records of goal activity) and self-coherence (a more abstracted and conceptually-rich long-term store of conceptual and remembered knowledge). This tension is examined in relation to each SMS component—the episodic memory system, long-term self, and the working self. The long-term self, a new aspect of the model, consists of the interaction of the autobiographical knowledge base and the conceptual self. The working self, depending on goal activity status, mediates between episodic memory and the long-term self. Applications of the SMS to personality and clinical psychology are provided through analysis of self-defining memories and adult attachment categories, as well as case histories of traumatic memory. The SMS's role in imagination ...

Granite magma formation, transport and emplacement in the Earth's crust.

Abstract: The origin of granites was once a question solely for petrologists and geochemists. But in recent years a consensus has emerged that recognizes the essential role of deformation in the segregation, transport and emplacement of silica-rich melts in the continental crust. Accepted petrological models are being questioned, either because they require unrealistic rheological behaviours of rocks and magmas, or because they do not satisfactorily explain the available structural or geophysical data. Provided flow is continuous, mechanical considerations suggest that--far from being geologically sluggish--granite magmatism is a rapid, dynamic process operating at timescales of < or = 100,000 years, irrespective of tectonic setting.