ABSTRACT:Based on the hypothesis that 3D cadastral models are helpful for notaries, this study investigates the performance of visual variables for the visualization of 3D models. The approach undertaken uses face-to-face interviews with notaries involved in co-ownership establishment. A 3D geometric model of a complex condominium building is used as the studied case to which a selection of visual variables is applied. Thirty visual solutions are tested against six notarial visualization tasks and notaries are asked several questions. Based on the preliminary responses, we can now say that colour is the visual variable most appreciated by notaries, regardless of the visualization task. The use of transparency is helpful in many cases, more specifically when reading annotation (official measures). However, confusion arises when too extensive geometry of 3D lots is viewed simultaneously, and unnecessary when the geometry of the lots is fully visible. Moving the position of the geometry of a group of lots (by floor for example) looks also promising. Although this interview-based approach is subjective and empirical, it helps us to better consider the end-user's interests and take into consideration their professional opinion and requirements. The 30 visual solutions produced during these first experiments constitute a useful foundation for further analysis.

Abstract. This paper discusses some of the findings and policy implications of a recently completed study of socioeconomic differences in infant mortality in eight metropolitan areas of Ohio at three points in time. The study revealed that, in spite of a considerable decline in the overall rate of infant mortality since 1960, the inverse socioeconomic differential remains as wide as ever. This clearly suggests that, although maternal and child health has improved overall, the lower economic groups in our society still do not have equal access either to health care or to other amenities essential to the maintenance of good health. Moreover, consideration of recent and current policy proposals with respect to welfare programs in general, and maternal and child health care programs in particular, leads to the conclusion that this situation is not likely to change in the near future. Finally, some policy recommendations for enhancing the health status of low-income families are offered.

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