We discuss the discovery of ‘notch-like’ features in the mean pulse profile of the nearby, bright pulsar B0950+08. We compare these low-level features with those previously seen in the pulse profiles of pulsars J0437−4715 and B1929+10. While J0437−4715 is a binary millisecond pulsar and B0950+08 and B1929+10 are isolated, slow pulsars, all three pulsars are nearby and very bright. Furthermore, ...

The human sensory system is capable to rapidly respond to novel input, allowing for quick allocation of attentional resources to the stimulus. In a similar manner, prominent words in speech seem to attract the listeners’ attention and facilitate or alter interpretation. Sentence prominence has been typically studied across languages by examining configurations of acoustic prosodic features duri...

Binary direction relations between points in two-dimensional space are the basis to any qualitative direction calculus. Previous calculi are only on a very low level of granularity. In this paper we propose a generalization of previous approaches which enables qualitative calculi with an arbitrary level of granularity. The resulting calculi are so powerful that they can even emulate a quantitat...

Today’s common business practice of extracting non-renewable raw materials from the earth, processing them, turning them into products, selling the products to customers, and then having the customers dispose of the products in a landfill or through incineration is not sustainable. Eventually, the basic raw materials that are used to build most of the products our economy is based on will run o...

This paper presents a new 3D shape representation and classification methodology developed for use in craniofacial dysmorphology studies. The methodology computes low-level features at each point of a 3D mesh representation, aggregates the features into histograms over mesh neighborhoods, learns the characteristics of salient point histograms for each particular application, and represents the ...

The aim of this study is to determine the relationship between pre-service teachers’ perceptions regarding technology use in mathematics teaching and their computer literacy levels as well as their mathematics teaching anxiety. The nonexperimental correlational research, which is included in the quantitative research approach, was used in the study. A total of 481 pre-service mathematics teache...

One measure of the effectiveness of a high school mathematics program is the success students have in subsequent university mathematics courses. As part of a large-scale study of Michigan students, we analyzed the records of students arriving at Michigan State University from four high schools which adopted the Core-Plus Mathematics program. Those students placed into, and enrolled in, increasi...