4 Illustration of the code for estimating survival (survival.sas) 6 4.1 Checking the estimates using PROC LIFETEST . . . . . . . . . . . . . . . . . . . 12 4.2 Standard error of the observed survival proportion . . . . . . . . . . . . . . . . . . 13 4.3 Standard error of the relative survival ratio . . . . . . . . . . . . . . . . . . . . . . 13 4.4 Confidence intervals for observed and relative...

Previous research has suggested that, relative to younger adults, older adults devote a greater proportion of their discourse processing to the situation model level. The current experiment assessed whether this is due, in part, to a preserved ability to focus on functionally appropriate information. The focus here was on spatial relations. Both reading time and recognition data showed superior...

Previous research has suggested that, relative to younger adults, older adults devote a greater proportion of their discourse processing to the situation model level. The current experiment assessed whether this is due, in part, to a preserved ability to focus on functionally appropriate information. The focus here was on spatial relations. Both reading time and recognition data showed superior...

It is widely recognised that successful online systems are not those that simply fulfil some functional specifications, but rather systems that are developed to also meet a number of non-functional requirements such as security, reliability and trust. It is also generally accepted that the development of quality online systems is not anymore just the task of single individuals or mono-cultural ...

Design for All is an important challenge for hypermedia engineering. We analyze this challenge and show that it is necessary to find a way of describing partially designed hypermedia documents that can then be transformed into different hypermedia applications according to user needs and call this concept “semi-documents”. We sketch similarities and differences to existing formalisms and conclu...