948 resultados para Health Sciences, Public Health|Health Sciences, Recreation|Recreation|Urban and Regional Planning


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Vol. for the <38th-67th> reports for school years <1909/1910-1938/1939> includes Announcement <1910/1911-1939/1940>

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Mode of access: Internet.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This paper presents empirical evidence suggesting that healthy humans can perform a two degree of freedom visuo-motor pursuit tracking task with the same response time delay as a one degree of freedom task. In contrast, the time delay of the response is influenced markedly by the nature of the motor synergy required to produce it. We suggest a conceptual account of this evidence based on adaptive model theory, which combines theories of intermittency from psychology and adaptive optimal control from engineering. The intermittent response planning stage has a fixed period. It possesses multiple optimal trajectory generators such that multiple degrees of freedom can be planned concurrently, without requiring an increase in the planning period. In tasks which require unfamiliar motor synergies, or are deemed to be incompatible, internal adaptive models representing movement dynamics are inaccurate. This means that the actual response which is produced will deviate from the one which is planned. For a given target-response discrepancy, corrective response trajectories of longer duration are planned, consistent with the principle of speed-accuracy trade-off. Compared to familiar or compatible tasks, this results in a longer response time delay and reduced accuracy. From the standpoint of the intermittency approach, the findings of this study help make possible a more integral and predictive account of purposive action. (c) 2005 Elsevier B.V. All rights reserved.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The Charities Act 2006 introduced at least three changes leading to renewed emphasis on the public benefit requirement for charities in England and Wales: changes which have the potential to alter substantially society’s understanding of what it means for a body to be a charity. There has been a great deal of technical discussion of the changes, but against that background, this article presents a qualitative assessment of perceptions of the practical impact. The changes made by the 2006 Act took effect in 2008, and by 2012 four years had elapsed for the impact to settle down. We assessed the perceived impact of the renewed public benefit emphasis, using in depth interviews with a number of major stakeholders and open workshops with charity staff, trustees and advisers. We found that most study participants valued public benefit as a central concept distinguishing charitable and non-charitable organisations, although for many charities the impact is experienced mainly at the time of registration and when producing their annual reports.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This paper presents a study on the implementation of Real-Time Pricing (RTP) based Demand Side Management (DSM) of water pumping at a clean water pumping station in Northern Ireland, with the intention of minimising electricity costs and maximising the usage of electricity from wind generation. A Genetic Algorithm (GA) was used to create pumping schedules based on system constraints and electricity tariff scenarios. Implementation of this method would allow the water network operator to make significant savings on electricity costs while also helping to mitigate the variability of wind generation.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This paper presents a study on the implementation of Real-Time Pricing (RTP) based Demand Side Management (DSM) of water pumping at a clean water pumping station in Northern Ireland, with the intention of minimising electricity costs and maximising the usage of electricity from wind generation. A Genetic Algorithm (GA) was used to create pumping schedules based on system constraints and electricity tariff scenarios. Implementation of this method would allow the water network operator to make significant savings on electricity costs while also helping to mitigate the variability of wind generation.