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  • Raz Tamir
  • 2005
Letting one's thoughts wander is not simply an arbitrary or rambling process. It can better be described as "associative thinking", where a complex chain of associative thoughts and ideas are linked. It is our contention that this seemingly chaotic process can be modeled by a random walk in a weighted directed graph. Furthermore, is it possible to predict(More)
Although the study of coral reproduction has advanced tremendously over the last few decades, a particular gap exists in our knowledge of the reproductive modes of corals from 'mesophotic coral ecosystems' (MCEs) found at 30-150 m depth. Here, we report for the first time on the reproductive patterns, living cover, and survivorship under different light(More)
The phenomenon of coral fluorescence in mesophotic reefs, although well described for shallow waters, remains largely unstudied. We found that representatives of many scleractinian species are brightly fluorescent at depths of 50-60 m at the Interuniversity Institute for Marine Sciences (IUI) reef in Eilat, Israel. Some of these fluorescent species have(More)
Mesophotic coral ecosystems (MCEs) host a thriving community of biota that has remained virtually unexplored. Here we report for the first time on a large population of the endangered coral species Euphyllia paradivisa from the MCEs of the Gulf of Eilat/Aqaba (GOE/A), Red Sea. The mesophotic zone in some parts of the study site harbors a specialized coral(More)
The urbanization of the shores of the Gulf of Aqaba has exposed the marine environment there, including unique fringing coral reefs, to strong anthropogenic light sources. Here we present the first in situ measurements of artificial nighttime light under water in such an ecosystem, with irradiance measured in 12 wavelength bands, at 19 measurement stations(More)
Here we describe for the first time the reproductive biology of the scleractinian coral Turbinaria reniformis studied during three years at the coral reefs of Eilat and Aqaba. We also investigated the possibility of sex change in individually tagged colonies followed over a period of 12 years. T. reniformis was found to be a stable gonochorist (no detected(More)
We combined a novel associations strength ranking algorithm and an unsupervised Self Organizing Maps technique to cluster free associations. We tested the algorithm on 171 seed terms and showed a very good clustering performance. The algorithm suggests a linkage between the two biggest known databases-the human mind and the Internet. The cluster labels can(More)
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