Perceptions of the nature and role of mathematics held by our society have a major influence on the development of school mathematics curriculum, instruction, and research. The understanding of different conceptions of mathematics is as important to the development and successful implementation of programs in school mathematics as it is to the conduct and interpretation of research studies. The...

Consciousness fits uneasily into our conception of the natural world. On the most common conception of nature, the natural world is the physical world. But on the most common conception of consciousness, it is not easy to see how it could be part of the physical world. So it seems that to find a place for consciousness within the natural order, we must either revise our conception of consciousn...

Contrary to previous studies treating divorce as a couple’s decision, we make a distinction between ‘his’, ‘her’, and ‘their’ divorce by using information about who initiated divorce. Using competing risk analysis, we re-examine four well-known determinants of divorce: (i) the wife’s employment, (ii) the financial situation of the household, (iii) the presence of children, and (iv) the quality ...

In 1989 Gerardo Beni and Jing Wang first proposed the name ―Swarm Intelligence‖ in their paper ―Swarm Intelligence in Cellular Robotic Systems‖. Some remarkable observations of different researchers are studied in this paper, like the proximity principle, the quality principle, the principle of diverse response, the principle of stability, the principle of adaptability. To enhance the capabilit...

Hyaluronan is a polysaccharide found in all tissues and body fluids of vertebrates as well as in some bacteria. It is a linear polymer of exceptional molecular weight, especially abundant in loose connective tissue. Hyaluronan is synthesized in the cellular plasma membrane. It exists as a pool associated with the cell surface, another bound to other matrix components, and a largely mobile pool....

It is somewhat surprising that many surveys of the field of morphology — even quite comprehensive ones, like Spencer & Zwicky — devote scant attention to the nature of the morpheme, its ontological and epistemological status. ey assume with remarkably little discussion that we know what morphemes are, and where and how to find them, and that the core problems of the field lie elsewhere. My ...

Henri Poincaré (1854–1912) developed a relativistic physics by elevating the empirical inability to detect absolute motion, or motion relative to the ether, to the principle of relativity, and its mathematics ensured that it would be compatible with that principle. Although Poincaré’s aim and theory were similar to those of Albert Einstein (1879–1955) in creating his special theory of relativit...