Support for the sustainable development of the Yellow River Delta

The environment in the Yellow River Delta (YRD) is under stress from large socio-economic pressures, leading to air, soil and water pollution. A Sino-Dutch project the Sustainable Development YRD project (1995 – 1997) was undertaken with the principle goal of contributing to the sustainable, long-term development of the Yellow River Delta. Objectives and criteria for sustainable development were defined. One of the main project challenges was to show how to use the limited fresh water resources in a sustainable way. This was undertaken using integrated and analytical tools in which future developments and strategies were systematically analysed. Such an approach provides a strong incentive to begin communication and develop mutual understanding between the different responsible authorities and stakeholders.Hydraulic EngineeringCivil Engineering and Geoscience

Yellow River delta: Support for sustainable development

Hydraulic EngineeringCivil Engineering and Geoscience

UNILATERAL NEGLECT RESTRICTED TO VISUAL-IMAGERY

DISORDERS in perceiving and exploring the visual space contralateral to a brain lesion have been frequently described. Many patients with hemi-neglect for extrapersonal space also show neglect in a representational domain when the task requires imagining a well-known piazza from a given vantage point1,2 or comparing two visual images3-5. Cognitive6 and psychophysiological7 studies show a functional parallelism between the perceptual and imaginative domain7, indicating that spatial perception and imagery share the same neural substrata. Here we describe a patient with a persistent disorder in visual imagery for familiar piazzas in the absence of any neglect for stimuli located in a far8 or near9 space or on his own body10. Contrary to previous cases involving imagery disorders, computerized tomography scans showed a lesion confined to the right frontal lobe, suggesting the role of the frontal lobe in some specific types of mental imagery