Interventional Endoscopy— Opportunities and Limitations

Interventional and Interdisciplinary Endoscopy - Developments and Chances.

and training. Thus the question for common training and certifications for specialized interventional endoscopy has to be raised. This also raises the question, whether it is cost effective to have performed screening endoscopy by highly specialized and trained gastroenterologists or if this relatively focused technique could be delegated and performed by specialized screening ‘colonoscopists’....

Polymer recycling: opportunities and limitations.

The disposal of polymer solid waste by means other than landfilling is necessary. The various approaches-source reduction, incineration, degradation, composting, and recycling-all have their roles and must be employed in an integrated manner. Where appropriate, recycling has ecological advantages, but its application is dependent upon the feasibility of collection, sorting, and/or compatibiliza...

User studies: Opportunities and limitations

In this keynote address I reflect on the role of user studies in dictionary research. Starting with a distinction between positivistic and naturalistic general methodological paradigms, I discuss a number of specific methods and techniques, pointing to their respective strengths and weaknesses. I introduce the audience to a related research paradigm which has recently emerged within computer sc...

Epidemiology and product safety--opportunities and limitations.

Agricultural use of wetlands: opportunities and limitations.

BACKGROUND Wetlands are species-rich habitats performing valuable ecosystem services such as flood protection, water quality enhancement, food chain support and carbon sequestration. Worldwide, wetlands have been drained to convert them into agricultural land or industrial and urban areas. A realistic estimate is that 50 % of the world's wetlands have been lost. SCOPE This paper reviews the r...