Nanotechnology is crucial for industrial and scientific advancement, with millions of dollars being invested each year in nanotechnology-related research. Recent developments in information-technology enables modeling the knowledge diffusion process via online depositories of nanotechnology-related scientific publication records. Understanding the mechanism may help funding agencies use their f...

Scientific understanding of climate change and climate instability has undergone a revolution in the past decade with the discovery of numerous past climate transitions so rapid, and so unlike the expectation of smooth climate changes, that they would have previously been unbelievable to the scientific community. Models commonly used by economists to assess the wisdom of adapting to human-induc...

Researchers have extensively documented a strong and consistent education gradient for mortality, with more highly educated individuals living longer than those with less education. This study contributes to our understanding of the education-mortality relationship by determining the effects of years of education and degree attainment on mortality, and by including nondegree certification, an i...

Many kinds of data collections are time-based or can be collected in a temporal manner. There has been a desire in the geography and geospatial communities to put temporal behavior on the same footing as spatial structure and to develop a comprehensive geo-temporal information system. In many cases, temporal information refers to sequences of happenings in the world. To efficiently represent su...

The economic argument for subsidizing charitable giving relies on the positive externalities of charitable activities, particularly from the religious institutions that are the largest recipients of giving. But the net external effects of subsidies to religious giving will also depend on a potentially important indirect effect as well: impacts on religious participation. Religious participation...

General interest in visualizations of digital 3D city models is growing rapidly, and several applications are available that display such models realistically. Many authors have emphasized the importance of realistic illumination for computer generated images, and this applies especially to 3D city visualization. However, current 3D city visualization applications rarely implement techniques fo...

Resources are crucial for the technological and economic development of firms in spatial perspective. In this paper we contrast two ways of conceptualizing resources, and argue that a conventional, substantive understanding implies a number of shortcomings which can be overcome through the application of a relational conception of resources. In examining four types of resourcesömaterial resourc...

Bayesian approaches to data analysis are popular in machine vision, and yet the main advantage of Bayes theory, the ability to incorporate prior knowledge in the form of the prior probabilities, may lead to problems in quantitative tasks. In this paper we demonstrate examples of Bayesian and nonBayesian techniques with the use of selected examples from the area of magnetic resonance image (MRI)...

The focus of this paper is the application of statistical models to the study of socioeconomic conditioning factors in perinatal Chagas' disease conducted in Rosario, Argentina. A case (154) and control (158) design was applied to investigate socioeconomic and cultural differences in pregnant women in Hospital Roque Sáenz Peña as to their infection status. Logistic regression models were used t...