Ontology design patterns are normally instantiated by replicating and adapting the pattern concepts and roles. The relation between pattern definitions and their instantiations is documented in natural language. The use of parametric ontologies or pattern-reuse modifications to OWL-DL has been suggested before, but so far only practical aspects have been analysed, leaving the formal semantics o...

in this work firstly mgfe2o4 nanoparticles were synthesized via a microwave-assisted method. the product was calcinated at 900 ºc for 2h. at the second step zinc oxide shell was synthesized on the ferrite under ultrasonic waves. properties of the product were examined by x-ray diffraction pattern (xrd), scanning electron microscope (sem) and fourier transform infrared (ft-ir) spectroscopy. vibr...

We present experiments involving cancer cells adhering in microchannels, subjected to increasing shear stresses (0.1Pa to 30Pa). Morphological studies are carried out at different shear stresses. Cells exhibit spreading patterns similar to the ones observed in static conditions, as long as the shear stress is not too high. At critical wall shear stresses (around 2− 5Pa), cells decrease their ce...

Ten Type A's and 10 Type B's, as measured by the student version of the JAS and the TASRI, exercised on a cycle ergometer for 20 minutes at light (40% vO,max), moderate (60% ~ o ~ m a x ) , and high (80% ~ 0 ~ m a x ) intensity exercise to determine A/B differences in psychophysiological responses. The norepinephrine and epinephrine responses of A/B types were similar at the light and moderate ...

Recent work suggests that concurrent excitation and inhibition originating in central pattern generators (CPGs) may be used to control rhythmic motoneuronal activity. The specific roles that the inhibition plays in such cases are not well understood, however, in part because of the lack of identification of presynaptic inhibitory neurons. Here we demonstrate that, in the Aplysia feeding CPG, in...

Although the northeastern US includes extensive areas of aggrading forest, uncertainty regarding the intensity and pattern of forest harvesting hampers an understanding of important ecological processes and characteristics such as carbon and nitrogen storage, habitat quality, and forest dynamics, and impedes regional conservation and management planning. Due to the complex ownership pattern dom...

Software patterns are used almost universally across design communities as the preferred mechanism for communicating best practice. And while the design archetypes captured by patterns continue to exert significant influence on software design decisions, there is no rigorous foundation for ensuring implementation correctness or reasoning about the systems in which patterns are applied. In this ...

In field studies designed to uncover opportunities for computationallyintensive business applications, we observed an interaction pattern we term "constellations" in which people depend on a variety of people and information sources to perform the duties of their employ. Constellations are significant for several reasons, constellations extensively cross organizational and corporate boundaries,...